/* إعدادات عامة محسنة للإضافة */
:root {
    --dmp-primary: #667eea;
    --dmp-primary-dark: #5a67d8;
    --dmp-primary-light: #e6eaff;
    --dmp-secondary: #764ba2;
    --dmp-success: #48bb78;
    --dmp-success-light: #e6fffa;
    --dmp-warning: #ed8936;
    --dmp-warning-light: #fffaf0;
    --dmp-error: #f56565;
    --dmp-error-light: #fed7d7;
    --dmp-info: #4299e1;
    --dmp-info-light: #e6f7ff;
    --dmp-light: #f7fafc;
    --dmp-dark: #2d3748;
    --dmp-gray: #718096;
    --dmp-gray-light: #edf2f7;
    --dmp-border: #e2e8f0;
    --dmp-shadow: 0 4px 16px rgba(102,126,234,0.15);
    --dmp-shadow-lg: 0 8px 32px rgba(102,126,234,0.2);
    --dmp-radius: 12px;
    --dmp-radius-sm: 8px;
    --dmp-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --dmp-font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* الحاوي الرئيسي محسن */
.dmp-tax-returns-manager-wrapper {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: var(--dmp-radius);
    padding: 0;
    margin: 2rem auto;
    max-width: 1400px;
    box-shadow: var(--dmp-shadow-lg);
    overflow: hidden;
    font-family: var(--dmp-font-family);
    direction: rtl;
    position: relative;
}

/* Header Section محسن */
.dmp-header {
    background: linear-gradient(135deg, var(--dmp-primary) 0%, var(--dmp-secondary) 100%);
    color: white;
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.dmp-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: headerGlow 8s ease-in-out infinite;
}

.dmp-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.dmp-header p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
    font-weight: 300;
}

@keyframes headerGlow {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(180deg); }
}

.dmp-header-content {
    position: relative;
    z-index: 1;
}

.dmp-header h2 {
    margin: 0 0 0.5rem 0;
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.dmp-subtitle {
    margin: 0;
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

/* Navigation Tabs */
.dmp-nav-tabs {
    display: flex;
    background: white;
    border-bottom: 2px solid var(--dmp-border);
    padding: 0 2rem;
}

.dmp-tab-btn {
    background: none;
    border: none;
    padding: 1rem 2rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dmp-gray);
    border-bottom: 3px solid transparent;
    transition: var(--dmp-transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dmp-tab-btn:hover {
    color: var(--dmp-primary);
    background: rgba(102,126,234,0.05);
}

.dmp-tab-btn.active {
    color: var(--dmp-primary);
    border-bottom-color: var(--dmp-primary);
    background: rgba(102,126,234,0.1);
}

/* Tab Content */
.dmp-tab-content {
    display: none;
    padding: 2rem;
    background: white;
    min-height: 400px;
}

.dmp-tab-content.active {
    display: block;
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Titles */
.dmp-section-title {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--dmp-border);
}

.dmp-section-title h3 {
    margin: 0;
    color: var(--dmp-dark);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form Styles */
.dmp-form-selection {
    background: var(--dmp-light);
    padding: 2rem;
    border-radius: var(--dmp-radius);
    margin-bottom: 2rem;
    border: 1px solid var(--dmp-border);
}

.dmp-form-group {
    margin-bottom: 1.5rem;
}

.dmp-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dmp-dark);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* بطاقات الإقرارات محسنة */
.dmp-return-card {
    background: white;
    border-radius: var(--dmp-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 1px solid var(--dmp-border);
    transition: var(--dmp-transition);
    position: relative;
    overflow: hidden;
}

.dmp-return-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background: var(--dmp-primary);
    transition: var(--dmp-transition);
}

.dmp-return-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--dmp-shadow);
}

.dmp-return-card:hover::before {
    width: 6px;
}

.dmp-return-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.dmp-return-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dmp-dark);
    margin: 0;
    flex: 1;
}

.dmp-return-status {
    padding: 0.4rem 0.8rem;
    border-radius: var(--dmp-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.dmp-status-completed {
    background: var(--dmp-success-light);
    color: var(--dmp-success);
    border: 1px solid var(--dmp-success);
}

.dmp-status-pending {
    background: var(--dmp-warning-light);
    color: var(--dmp-warning);
    border: 1px solid var(--dmp-warning);
}

.dmp-status-not-prepared {
    background: var(--dmp-error-light);
    color: var(--dmp-error);
    border: 1px solid var(--dmp-error);
}

.dmp-status-under-review {
    background: var(--dmp-info-light);
    color: var(--dmp-info);
    border: 1px solid var(--dmp-info);
}

.dmp-return-details {
    margin-bottom: 1.5rem;
}

.dmp-return-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.dmp-return-info span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--dmp-gray);
}

.dmp-return-info i {
    color: var(--dmp-primary);
    width: 16px;
}

.dmp-return-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    padding: 1rem;
    background: var(--dmp-gray-light);
    border-radius: var(--dmp-radius-sm);
    margin-bottom: 1rem;
}

.dmp-meta-item {
    text-align: center;
}

.dmp-meta-label {
    font-size: 0.8rem;
    color: var(--dmp-gray);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dmp-meta-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dmp-dark);
}

.dmp-return-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.dmp-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--dmp-radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--dmp-transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    white-space: nowrap;
}

.dmp-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.dmp-btn-primary {
    background: var(--dmp-primary);
    color: white;
}

.dmp-btn-primary:hover {
    background: var(--dmp-primary-dark);
}

.dmp-btn-secondary {
    background: var(--dmp-gray);
    color: white;
}

.dmp-btn-secondary:hover {
    background: #2d3748;
}

.dmp-btn-error {
    background: var(--dmp-error);
    color: white;
}

.dmp-btn-error:hover {
    background: #e53e3e;
}

.dmp-btn-success {
    background: var(--dmp-success);
    color: white;
}

/* إحصائيات محسنة */
.dmp-statistics-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.dmp-stat-card {
    background: white;
    padding: 2rem;
    border-radius: var(--dmp-radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 1px solid var(--dmp-border);
    text-align: center;
    transition: var(--dmp-transition);
    position: relative;
    overflow: hidden;
}

.dmp-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--dmp-primary), var(--dmp-secondary));
}

.dmp-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--dmp-shadow);
}

.dmp-stat-icon {
    font-size: 2.5rem;
    color: var(--dmp-primary);
    margin-bottom: 1rem;
    display: block;
}

.dmp-stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dmp-dark);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.dmp-stat-label {
    font-size: 1rem;
    color: var(--dmp-gray);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.dmp-stat-change {
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: var(--dmp-radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.dmp-stat-change.positive {
    background: var(--dmp-success-light);
    color: var(--dmp-success);
}

.dmp-stat-change.negative {
    background: var(--dmp-error-light);
    color: var(--dmp-error);
}

.dmp-stat-change.neutral {
    background: var(--dmp-gray-light);
    color: var(--dmp-gray);
}

/* رسوم بيانية بسيطة */
.dmp-chart-container {
    background: white;
    padding: 2rem;
    border-radius: var(--dmp-radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 1px solid var(--dmp-border);
    margin-bottom: 2rem;
}

.dmp-chart-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dmp-dark);
    margin-bottom: 1.5rem;
    text-align: center;
}

.dmp-progress-bar {
    background: var(--dmp-gray-light);
    border-radius: var(--dmp-radius-sm);
    height: 8px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.dmp-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--dmp-primary), var(--dmp-secondary));
    border-radius: var(--dmp-radius-sm);
    transition: width 1s ease-out;
}

.dmp-progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--dmp-gray);
    margin-bottom: 1rem;
}

/* حالات فارغة محسنة */
.dmp-empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--dmp-gray);
}

.dmp-empty-state i {
    font-size: 4rem;
    color: var(--dmp-primary);
    margin-bottom: 1rem;
    opacity: 0.5;
}

.dmp-empty-state h3 {
    font-size: 1.5rem;
    color: var(--dmp-dark);
    margin-bottom: 0.5rem;
}

.dmp-empty-state p {
    font-size: 1rem;
    margin-bottom: 2rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* محمل محسن */
.dmp-loading {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--dmp-gray);
}

.dmp-loading i {
    font-size: 2rem;
    color: var(--dmp-primary);
    margin-bottom: 1rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* إشعارات محسنة */
.dmp-notification {
    position: fixed;
    top: 20px;
    left: 20px;
    right: 20px;
    z-index: 9999;
    padding: 1rem 1.5rem;
    border-radius: var(--dmp-radius-sm);
    box-shadow: var(--dmp-shadow);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    animation: slideInDown 0.3s ease-out;
}

.dmp-notification.success {
    background: var(--dmp-success-light);
    color: var(--dmp-success);
    border: 1px solid var(--dmp-success);
}

.dmp-notification.error {
    background: var(--dmp-error-light);
    color: var(--dmp-error);
    border: 1px solid var(--dmp-error);
}

.dmp-notification.warning {
    background: var(--dmp-warning-light);
    color: var(--dmp-warning);
    border: 1px solid var(--dmp-warning);
}

.dmp-notification.info {
    background: var(--dmp-info-light);
    color: var(--dmp-info);
    border: 1px solid var(--dmp-info);
}

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

/* تجاوبية محسنة */
@media (max-width: 768px) {
    .dmp-return-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .dmp-return-actions {
        justify-content: center;
        width: 100%;
    }
    
    .dmp-btn {
        flex: 1;
        justify-content: center;
        min-width: 0;
    }
    
    .dmp-statistics-container {
        grid-template-columns: 1fr;
    }
    
    .dmp-return-info {
        grid-template-columns: 1fr;
    }
    
    .dmp-notification {
        left: 10px;
        right: 10px;
    }
}
.dmp-input,
.dmp-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--dmp-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--dmp-transition);
    background: white;
}

.dmp-select:focus,
.dmp-input:focus,
.dmp-textarea:focus {
    outline: none;
    border-color: var(--dmp-primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

.dmp-select-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
}

/* Buttons */
.dmp-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--dmp-transition);
    text-decoration: none;
    text-align: center;
}

.dmp-btn-primary {
    background: linear-gradient(135deg, var(--dmp-primary), var(--dmp-primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(102,126,234,0.3);
}

.dmp-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102,126,234,0.4);
}

.dmp-btn-success {
    background: linear-gradient(135deg, var(--dmp-success), #38a169);
    color: white;
}

.dmp-btn-warning {
    background: linear-gradient(135deg, var(--dmp-warning), #dd6b20);
    color: white;
}

.dmp-btn-error {
    background: linear-gradient(135deg, var(--dmp-error), #e53e3e);
    color: white;
}

.dmp-btn-secondary {
    background: var(--dmp-light);
    color: var(--dmp-dark);
    border: 1px solid var(--dmp-border);
}

/* Empty State */
.dmp-empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--dmp-gray);
}

.dmp-empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.dmp-empty-state h3 {
    margin: 0 0 1rem 0;
    color: var(--dmp-dark);
}

/* Filters */
.dmp-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--dmp-light);
    border-radius: var(--dmp-radius);
    align-items: end;
    flex-wrap: wrap;
}

.dmp-filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 200px;
}

.dmp-filter-group label {
    font-weight: 500;
    color: var(--dmp-dark);
    font-size: 0.9rem;
}

/* Filters and Search */
.dmp-filters-section {
    background: white;
    border-radius: var(--dmp-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 1px solid var(--dmp-border);
}

.dmp-search-bar {
    margin-bottom: 2rem;
}

.dmp-search-input-group {
    display: flex;
    max-width: 400px;
    gap: 0.5rem;
}

.dmp-search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--dmp-border);
    border-radius: var(--dmp-radius-sm);
    font-size: 1rem;
    transition: var(--dmp-transition);
}

.dmp-search-input:focus {
    outline: none;
    border-color: var(--dmp-primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

.dmp-search-btn {
    padding: 0.75rem 1.5rem;
    background: var(--dmp-primary);
    color: white;
    border: none;
    border-radius: var(--dmp-radius-sm);
    cursor: pointer;
    transition: var(--dmp-transition);
}

.dmp-search-btn:hover {
    background: var(--dmp-primary-dark);
    transform: translateY(-1px);
}

.dmp-filters-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    align-items: end;
}

.dmp-filter-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.dmp-filter-item label {
    font-weight: 600;
    color: var(--dmp-dark);
    font-size: 0.9rem;
}

.dmp-filter-select {
    padding: 0.75rem;
    border: 2px solid var(--dmp-border);
    border-radius: var(--dmp-radius-sm);
    font-size: 1rem;
    transition: var(--dmp-transition);
    background: white;
}

.dmp-filter-select:focus {
    outline: none;
    border-color: var(--dmp-primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

.dmp-filter-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
}

@media (max-width: 768px) {
    .dmp-filters-group {
        grid-template-columns: 1fr;
    }
    
    .dmp-filter-actions {
        grid-column: 1;
        justify-content: center;
    }
    
    .dmp-search-input-group {
        max-width: none;
    }
}

/* Loading States */
.dmp-loading {
    text-align: center;
    padding: 3rem;
    color: var(--dmp-gray);
    font-size: 1.1rem;
}

.dmp-loading i {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--dmp-primary);
}

.dmp-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dmp-loading-content {
    background: white;
    padding: 2rem;
    border-radius: var(--dmp-radius);
    text-align: center;
    box-shadow: var(--dmp-shadow);
}

.dmp-loading-content i {
    font-size: 3rem;
    color: var(--dmp-primary);
    margin-bottom: 1rem;
}

/* Form Fields */
.tax-form-fields {
    background: white;
    padding: 2rem;
    border-radius: var(--dmp-radius);
    border: 1px solid var(--dmp-border);
    margin-top: 2rem;
    position: relative;
}

/* Edit mode indicator */
.tax-form-fields.edit-mode {
    border-color: var(--dmp-warning);
    background: linear-gradient(135deg, #fffbf0 0%, white 100%);
}

.tax-form-fields.edit-mode::before {
    content: '🔄 وضع التعديل';
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--dmp-warning);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dmp-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--dmp-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--dmp-transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--dmp-primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

.tax-form-submit {
    background: linear-gradient(135deg, var(--dmp-success), #38a169);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--dmp-transition);
    width: 100%;
    margin-top: 1rem;
}

.tax-form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(72,187,120,0.4);
}

/* Returns List */
.dmp-returns-list {
    display: grid;
    gap: 1rem;
}

.dmp-return-card {
    background: white;
    border: 1px solid var(--dmp-border);
    border-radius: var(--dmp-radius);
    padding: 1.5rem;
    transition: var(--dmp-transition);
    cursor: pointer;
}

.dmp-return-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--dmp-shadow);
}

.dmp-return-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.dmp-return-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dmp-dark);
    margin: 0;
}

.dmp-return-status {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.dmp-status-not-prepared {
    background: #fed7d7;
    color: #c53030;
}

.dmp-status-prepared-review {
    background: #fef5e7;
    color: #dd6b20;
}

.dmp-status-reviewed-sent {
    background: #e6fffa;
    color: #319795;
}

.dmp-status-sent {
    background: #dcfce7;
    color: #16a34a;
}

.dmp-return-meta {
    display: flex;
    gap: 1rem;
    color: var(--dmp-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.dmp-return-actions {
    display: flex;
    gap: 0.5rem;
}

.dmp-return-details {
    margin-bottom: 0.5rem;
}

.dmp-return-info {
    display: flex;
    gap: 2rem;
    color: var(--dmp-gray);
    font-size: 0.95rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}

.dmp-return-info span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* Notifications */
.dmp-notifications {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
}

.dmp-notification {
    background: white;
    border: 1px solid var(--dmp-border);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin-bottom: 0.5rem;
    box-shadow: var(--dmp-shadow);
    min-width: 300px;
    animation: slideInRight 0.3s ease;
}

.dmp-notification.success {
    border-left: 4px solid var(--dmp-success);
}

.dmp-notification.error {
    border-left: 4px solid var(--dmp-error);
}

.dmp-notification.warning {
    border-left: 4px solid var(--dmp-warning);
}

.dmp-notification.info {
    border-left: 4px solid var(--dmp-info);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Login Notice */
.dmp-login-notice {
    background: linear-gradient(135deg, var(--dmp-warning), #dd6b20);
    color: white;
    padding: 2rem;
    border-radius: var(--dmp-radius);
    text-align: center;
    font-size: 1.1rem;
    margin: 2rem auto;
    max-width: 600px;
}

.dmp-login-notice i {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: block;
}

/* Statistics */
.dmp-statistics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.dmp-stat-card {
    background: white;
    border: 1px solid var(--dmp-border);
    border-radius: var(--dmp-radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--dmp-transition);
}

.dmp-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--dmp-shadow);
}

.dmp-stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dmp-primary);
    margin-bottom: 0.5rem;
}

.dmp-stat-label {
    color: var(--dmp-gray);
    font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dmp-tax-returns-manager-wrapper {
        margin: 1rem;
        border-radius: 8px;
    }
    
    .dmp-nav-tabs {
        padding: 0 1rem;
        flex-wrap: wrap;
    }
    
    .dmp-tab-btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .dmp-tab-content {
        padding: 1rem;
    }
    
    .dmp-header {
        padding: 1.5rem 1rem;
    }
    
    .dmp-header h2 {
        font-size: 2rem;
    }
    
    .dmp-filters {
        flex-direction: column;
        gap: 1rem;
    }
    
    .dmp-filter-group {
        min-width: auto;
    }
    
    .dmp-return-header {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .dmp-return-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .dmp-statistics {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .dmp-form-selection {
        padding: 1rem;
    }
    
    .tax-form-fields {
        padding: 1rem;
    }
    
    .dmp-btn {
        width: 100%;
        justify-content: center;
    }
    
    .dmp-notification {
        min-width: auto;
        margin: 0 1rem 0.5rem 1rem;
    }
}

/* إحصائيات المستخدمين */
.dmp-user-stats {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.dmp-user-stat-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--dmp-light);
    border-radius: var(--dmp-radius-sm);
    border: 1px solid var(--dmp-border);
    transition: var(--dmp-transition);
}

.dmp-user-stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--dmp-shadow);
}

.dmp-user-rank {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--dmp-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
    margin-left: 1rem;
}

.dmp-user-info {
    flex: 1;
}

.dmp-user-name {
    font-weight: 600;
    color: var(--dmp-dark);
    margin-bottom: 0.25rem;
}

.dmp-user-email {
    font-size: 0.875rem;
    color: var(--dmp-gray);
}

.dmp-user-count {
    text-align: center;
    padding: 0.5rem 1rem;
    background: var(--dmp-success-light);
    border-radius: var(--dmp-radius-sm);
}

.dmp-count-number {
    display: block;
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--dmp-success);
}

.dmp-count-label {
    font-size: 0.75rem;
    color: var(--dmp-gray);
}

@media (max-width: 768px) {
    .dmp-user-stat-item {
        padding: 0.75rem;
    }
    
    .dmp-user-rank {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .dmp-user-name {
        font-size: 0.875rem;
    }
    
    .dmp-user-email {
        font-size: 0.75rem;
    }
}

/* Tree Structure Styles للعرض الشجري */
.tree-structure {
    padding: 2rem;
    direction: rtl;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 16px;
    margin: 1.5rem 0;
    border: 1px solid #cbd5e0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    position: relative;
    overflow: hidden;
}

.tree-structure::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
}

.user-node {
    margin-bottom: 1.8rem;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 3px 12px rgba(0,0,0,0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
    position: relative;
}

.user-node::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #667eea, transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.user-node:hover::before {
    opacity: 1;
}

.user-node:hover {
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.2);
    border-color: #667eea;
    transform: translateY(-2px);
}

.user-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    color: white;
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.user-header:hover {
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 50%, #ec4899 100%);
    padding-right: 2rem;
    transform: scale(1.02);
}

.user-header::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background: rgba(255,255,255,0.3);
}

.user-info {
    display: flex;
    align-items: center;
    flex: 1;
}

.user-icon {
    background: rgba(255,255,255,0.25);
    padding: 0.7rem;
    border-radius: 50%;
    margin-left: 1rem;
    font-size: 1.2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.user-name {
    font-size: 1.15rem;
    font-weight: 700;
    margin-left: 0.8rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.returns-count {
    font-size: 0.9rem;
    opacity: 0.95;
    background: rgba(255,255,255,0.25);
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    margin-left: 1rem;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.2);
}

.toggle-icon {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.1rem;
    color: rgba(255,255,255,0.9);
    padding: 0.5rem;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
}

.toggle-icon.fa-chevron-up {
    transform: rotate(180deg);
}

.years-container {
    background: linear-gradient(to bottom, #f8fafc, #e2e8f0);
    padding: 1.5rem;
    display: none;
    border-top: 2px solid rgba(102, 126, 234, 0.1);
}

.year-list {
    display: none;
    background: linear-gradient(to bottom, #f8fafc, #e2e8f0);
    padding: 1.5rem;
    border-top: 2px solid rgba(102, 126, 234, 0.1);
}

.year-node {
    margin-bottom: 1.2rem;
    background: white;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.year-node:hover {
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
    border-color: #cbd5e0;
    transform: translateX(-3px);
}

.year-header {
    background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%);
    color: white;
    padding: 0.9rem 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600;
    position: relative;
}

.year-header:hover {
    background: linear-gradient(135deg, #3182ce 0%, #2c5aa0 100%);
    padding-right: 1.5rem;
    transform: scale(1.01);
}

.year-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 70%;
    background: rgba(255,255,255,0.3);
    border-radius: 0 3px 3px 0;
    opacity: 0.6;
    transition: all 0.3s ease;
}

.year-header:hover::before {
    opacity: 1;
    width: 6px;
}

.year-info {
    display: flex;
    align-items: center;
}

.year-icon {
    color: rgba(255,255,255,0.9);
    margin-left: 0.8rem;
    font-size: 1.1rem;
    background: rgba(255,255,255,0.15);
    padding: 0.4rem;
    border-radius: 50%;
}

.year-label {
    font-size: 1.05rem;
    font-weight: 700;
    color: white;
    margin-left: 0.8rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.year-count {
    font-size: 0.8rem;
    color: #718096;
    background: #e2e8f0;
    padding: 0.2rem 0.4rem;
    border-radius: 8px;
    margin-left: 1rem;
}

.year-count {
    font-size: 0.85rem;
    opacity: 0.95;
    background: rgba(255,255,255,0.2);
    padding: 0.3rem 0.6rem;
    border-radius: 12px;
    margin-left: 1rem;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.1);
}

.returns-container, .return-list {
    padding: 1rem;
    background: linear-gradient(to bottom, #fdfdfd, #f8fafc);
    display: none;
    border-top: 2px solid rgba(66, 153, 225, 0.1);
}

.return-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.2rem;
    margin-bottom: 0.8rem;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.06);
}

.return-item::before {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

.return-item.clicked {
    transform: scale(0.98);
    background: #f0f9ff;
}

.return-item:hover {
    background: #f7fafc;
    border-color: #667eea;
    transform: translateX(-5px);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15);
}

.return-item:hover::before {
    width: 4px;
}

.return-icon {
    color: #667eea;
    margin-left: 0.8rem;
    font-size: 1.1rem;
    position: relative;
    z-index: 1;
}

.return-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    position: relative;
    z-index: 1;
}

.return-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: #2d3748;
    margin: 0;
}

.return-date {
    font-size: 0.8rem;
    color: #718096;
    margin: 0;
}

.return-status {
    padding: 0.3rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
    min-width: 70px;
    position: relative;
    z-index: 1;
    border: 1px solid transparent;
}

.status-completed {
    background: linear-gradient(135deg, #c6f6d5, #9ae6b4);
    color: #22543d;
    border: 1px solid #68d391;
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(34, 84, 61, 0.1);
}

.status-pending {
    background: linear-gradient(135deg, #fed7cc, #fbb499);
    color: #c05621;
    border: 1px solid #f6ad55;
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(192, 86, 33, 0.1);
}

.status-draft {
    background: linear-gradient(135deg, #e2e8f0, #cbd5e0);
    color: #4a5568;
    border: 1px solid #a0aec0;
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(74, 85, 104, 0.1);
}

/* Tree structure animations and enhancements */
.tree-structure .user-node.expanded > .year-list {
    animation: fadeInDown 0.4s ease-out;
}

.tree-structure .year-node.expanded > .return-list {
    animation: fadeInUp 0.4s ease-out;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-15px);
        max-height: 0;
    }
    to {
        opacity: 1;
        transform: translateY(0);
        max-height: 1000px;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
        max-height: 0;
    }
    to {
        opacity: 1;
        transform: translateY(0);
        max-height: 1000px;
    }
}

/* Enhanced expand/collapse indicators with smooth transitions */
.user-header .expand-icon,
.year-header .expand-icon {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: #667eea;
    font-weight: bold;
    display: inline-block;
    transform-origin: center;
}

.user-node.expanded .user-header .expand-icon,
.year-node.expanded .year-header .expand-icon {
    transform: rotate(90deg);
    color: #5a67d8;
}

/* Loading state for tree expansion */
.tree-structure .loading {
    position: relative;
    pointer-events: none;
}

.tree-structure .loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #e2e8f0;
    border-top: 2px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Click feedback for return items */
.return-item.clicked {
    transform: translateX(-3px) scale(0.98);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.25);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.status-approved {
    background: linear-gradient(135deg, #bee3f8, #90cdf4);
    color: #2c5aa0;
    border: 1px solid #63b3ed;
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(44, 90, 160, 0.1);
}

@media (max-width: 768px) {
    .tree-structure {
        padding: 0.5rem 0;
    }
    
    .user-header {
        padding: 0.8rem 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .user-name {
        font-size: 1rem;
    }
    
    .returns-count {
        font-size: 0.8rem;
    }
    
    .year-header {
        padding: 0.6rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .return-item {
        padding: 0.6rem 0.8rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        margin-bottom: 0.4rem;
    }
    
    .return-info {
        width: 100%;
    }
    
    .return-status {
        align-self: flex-end;
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }
    
    .return-title {
        font-size: 0.85rem;
    }
    
    .return-date {
        font-size: 0.75rem;
    }
    
    .expand-icon {
        font-size: 0.9rem;
    }
    
    /* Improved mobile touch targets */
    .user-header,
    .year-header,
    .return-item {
        min-height: 48px;
    }
    
    .toggle-icon,
    .expand-icon {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* Enhanced accessibility and performance optimizations */
.tree-structure * {
    box-sizing: border-box;
}

.tree-structure {
    will-change: transform;
}

.user-node,
.year-node,
.return-item {
    will-change: transform, box-shadow;
}

/* Focus states for keyboard navigation */
.user-header:focus,
.year-header:focus,
.return-item:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .tree-structure {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .user-header,
    .year-header {
        background: #f0f0f0 !important;
        color: #000 !important;
    }
    
    .return-item {
        break-inside: avoid;
    }
}

/* أنماط قائمة الإقرارات حسب السنة */
.year-returns-container {
    margin: 2rem 0;
    background: white;
    border-radius: var(--dmp-radius);
    box-shadow: var(--dmp-shadow);
    overflow: hidden;
    animation: slideInUp 0.3s ease-out;
}

.year-returns-list {
    padding: 1.5rem;
}

.returns-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--dmp-border);
}

.returns-header h4 {
    color: var(--dmp-primary);
    font-size: 1.5rem;
    margin: 0 0 0.5rem 0;
    font-weight: 600;
}

.returns-count {
    color: var(--dmp-gray);
    font-size: 0.95rem;
    margin: 0;
}

.returns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.return-card {
    background: white;
    border: 1px solid var(--dmp-border);
    border-radius: var(--dmp-radius-sm);
    padding: 1.25rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: var(--dmp-transition);
    position: relative;
    overflow: hidden;
}

.return-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102,126,234,0.15);
    border-color: var(--dmp-primary);
}

.return-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--dmp-border);
}

.return-number {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--dmp-primary);
    background: var(--dmp-primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.return-type {
    background: var(--dmp-info);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

.return-details {
    margin-bottom: 1rem;
}

.return-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    padding: 0.25rem 0;
}

.return-row .label {
    font-weight: 500;
    color: var(--dmp-gray);
    font-size: 0.9rem;
}

.return-row .value {
    font-weight: 600;
    color: var(--dmp-dark);
    text-align: left;
}

.return-row .status {
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    text-align: center;
}

.status-draft {
    background: var(--dmp-gray-light);
    color: var(--dmp-gray);
}

.status-submitted,
.status-pending {
    background: var(--dmp-warning-light);
    color: var(--dmp-warning);
}

.status-approved {
    background: var(--dmp-success-light);
    color: var(--dmp-success);
}

.status-rejected {
    background: var(--dmp-error-light);
    color: var(--dmp-error);
}

.return-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--dmp-border);
}

.return-actions .dmp-btn {
    flex: 1;
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
    border-radius: var(--dmp-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    transition: var(--dmp-transition);
}

.return-actions .dmp-edit-return {
    background: var(--dmp-primary);
    color: white;
    border: 1px solid var(--dmp-primary);
}

.return-actions .dmp-edit-return:hover {
    background: var(--dmp-primary-dark);
}

.return-actions .dmp-view-return {
    background: transparent;
    color: var(--dmp-info);
    border: 1px solid var(--dmp-info);
}

.return-actions .dmp-view-return:hover {
    background: var(--dmp-info);
    color: white;
}

.no-returns {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--dmp-gray);
}

.no-returns i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.no-returns p {
    font-size: 1.1rem;
    margin: 0;
}

.dmp-loading {
    text-align: center;
    padding: 2rem;
    color: var(--dmp-primary);
    font-size: 1.1rem;
}

.dmp-loading i {
    margin-left: 0.5rem;
    font-size: 1.2rem;
}

.dmp-error {
    text-align: center;
    padding: 2rem;
    color: var(--dmp-error);
    background: var(--dmp-error-light);
    border-radius: var(--dmp-radius-sm);
    margin: 1rem 0;
}

/* أنيميشن للظهور */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* تحسينات الاستجابة */
@media (max-width: 768px) {
    .returns-grid {
        grid-template-columns: 1fr;
    }
    
    .return-actions {
        flex-direction: column;
    }
    
    .return-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .return-row .value {
        text-align: right;
    }
}