/* TechXSolutions Finance Management System - Styles */

/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Global Mobile Touch Fix */
@media (max-width: 768px) {
    html, body {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        user-select: none;
    }
    
    /* Allow text selection in inputs */
    input, textarea, select {
        -webkit-user-select: text;
        user-select: text;
    }
    
    /* Ensure all buttons are clickable */
    button, .btn, [onclick] {
        pointer-events: auto !important;
        cursor: pointer !important;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
}

:root {
    /* Color Variables */
    --primary-color: #667eea;
    --primary-dark: #5a6fd8;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Neutral Colors */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --border-color: #e5e7eb;
    --background: #f9fafb;
    --card-background: #ffffff;
    --surface: #ffffff;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Mobile-specific variables */
    --mobile-touch-target: 44px;
    --mobile-spacing: 0.75rem;
    --mobile-font-size: 0.875rem;
    
    /* Touch-friendly sizes */
    --touch-min-width: 44px;
    --touch-min-height: 44px;
    --touch-padding: 12px;
}

/* Base Styles */
body {
    font-family: var(--font-family);
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: var(--font-size-md);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-brand, .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.nav-brand i, .logo i {
    font-size: var(--font-size-2xl);
}

.logo span {
    font-weight: 700;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.logout-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: white;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
    font-family: inherit;
    font-size: inherit;
}

.logout-btn:hover {
    background-color: rgba(239, 68, 68, 0.2);
    color: #fecaca;
}

/* Main Content */
.main-content {
    padding: var(--spacing-2xl) 0;
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
}

/* Stats Section */
.stats-section {
    margin-bottom: var(--spacing-2xl);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat-card {
    background: var(--card-background);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

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

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.stat-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.stat-content h3 {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    font-weight: 500;
}

/* Color variants for stat cards */
.stat-card.total-money .stat-icon {
    background: linear-gradient(135deg, var(--success-color), #059669);
}

.stat-card.profit .stat-icon {
    background: linear-gradient(135deg, var(--info-color), #2563eb);
}

.stat-card.expenses .stat-icon {
    background: linear-gradient(135deg, var(--warning-color), #d97706);
}

.stat-card.net-profit .stat-icon {
    background: linear-gradient(135deg, var(--success-color), #059669);
}

/* Form Section */
.form-section {
    background: var(--card-background);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}



.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.section-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select {
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    transition: var(--transition-fast);
    background-color: var(--surface);
    /* Mobile touch improvements */
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    font-size: 16px; /* Prevents zoom on iOS */
}

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

.form-group input[readonly] {
    background-color: var(--background);
    cursor: not-allowed;
}

/* Buttons */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    justify-content: center;
    /* Mobile touch improvements */
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
    min-height: var(--touch-min-height);
    min-width: var(--touch-min-width);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--background);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Table Section */
.table-section {
    background: var(--card-background);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.table-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.search-box i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.search-box input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 2.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    transition: var(--transition-fast);
}

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

.table-container {
    margin-top: var(--spacing-xl);
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.transactions-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
}

.transactions-table th {
    background: var(--background);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.transactions-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.transactions-table tbody tr {
    transition: var(--transition-fast);
}

.transactions-table tbody tr:hover {
    background-color: var(--background);
}

.transaction-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
}

.btn-danger {
    background-color: var(--error-color);
    color: white;
    border: none;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.table-loading,
.table-empty {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.table-loading i {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.table-empty i {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s ease;
    overflow-y: auto;
}

.modal[style*="flex"] {
    display: flex !important;
    opacity: 1;
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--text-light);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--background);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* File Upload */
.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
    margin: var(--spacing-lg) 0;
}

.file-upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(102, 126, 234, 0.05);
}

.file-upload-area i {
    font-size: var(--font-size-3xl);
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.file-upload-area p {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.file-upload-area small {
    color: var(--text-light);
}

.selected-file {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--background);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.selected-file i {
    color: var(--success-color);
    font-size: var(--font-size-lg);
}

.selected-file button {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    margin-left: auto;
}

.selected-file button:hover {
    background-color: var(--error-color);
    color: white;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.toast {
    background: var(--card-background);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 300px;
    max-width: 400px;
    transform: translateX(100%);
    animation: slideIn 0.3s ease-out forwards;
}

.toast.success {
    border-left-color: var(--success-color);
}

.toast.error {
    border-left-color: var(--error-color);
}

.toast.warning {
    border-left-color: var(--warning-color);
}

.toast i {
    font-size: var(--font-size-lg);
}

.toast.success i {
    color: var(--success-color);
}

.toast.error i {
    color: var(--error-color);
}

.toast.warning i {
    color: var(--warning-color);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
}

.toast-close:hover {
    background-color: var(--background);
}

@keyframes slideIn {
    to {
        transform: translateX(0);
    }
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1200;
}

.loading-spinner {
    text-align: center;
}

.loading-spinner i {
    font-size: var(--font-size-3xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.loading-spinner p {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Project-specific Styles */
.project-badge {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 16px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.category-badge {
    display: inline-block;
    padding: 4px 8px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 500;
    white-space: nowrap;
}

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

.project-card {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.project-card:hover::before {
    opacity: 1;
}

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

.project-info {
    flex: 1;
}

.project-name {
    margin: 0 0 0.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
}

.project-description {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.4;
}

.project-color {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-left: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.project-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
    padding: 0.5rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
}

.project-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.project-actions .btn {
    flex: 1;
    justify-content: center;
    min-height: 40px;
    font-size: 0.9rem;
}

.project-actions .btn-small {
    padding: 0.6rem 0.8rem;
    min-width: 40px;
    flex: 0 0 auto;
    border-radius: 6px;
}

.project-actions .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #2563eb);
    border: none;
    font-weight: 500;
}

.project-actions .btn-secondary {
    background-color: #6b7280;
    border-color: #6b7280;
    color: white;
}

.project-actions .btn-danger {
    background-color: var(--error-color);
    border-color: var(--error-color);
    color: white;
}

.loading-projects,
.empty-projects {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text-color);
    font-size: 1.5rem;
}

.empty-state p {
    margin: 0 0 2rem 0;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

.project-header-section {
    margin-bottom: 2rem;
}

.project-title h1 {
    margin: 0.5rem 0 0.25rem 0;
    color: var(--text-color);
}

.project-title p {
    margin: 0;
    color: var(--text-muted);
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-shrink: 0;
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    margin: 0 0 0.5rem 0;
    color: var(--text-color);
    font-size: 2rem;
    font-weight: 700;
}

.page-header p {
    margin: 0;
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.5;
}

.projects-section {
    min-height: 400px;
}

.loading-projects {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.loading-projects .loading-spinner {
    margin-bottom: 1rem;
}

.loading-projects p {
    margin: 0;
    font-size: 1rem;
}

.projects-grid {
    min-height: 200px;
}

.color-picker {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.color-picker input[type="color"] {
    width: 50px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    padding: 2px;
}

.color-preview {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.modal-form .form-group {
    margin-bottom: 1rem;
}

.modal-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.modal-form input,
.modal-form textarea,
.modal-form select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.modal-form input:focus,
.modal-form textarea:focus,
.modal-form select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.modal-form textarea {
    resize: vertical;
    min-height: 80px;
}

.modal-content {
    background: white;
    border-radius: 16px;
    padding: 0;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    transform: scale(0.95);
    transition: transform 0.3s ease;
    position: relative;
}

.modal[style*="flex"] .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background-color: var(--error-color);
    color: white;
}

.modal-form {
    padding: 1.5rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.form-actions .btn {
    min-width: 100px;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
}

.form-actions .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #2563eb);
    border: none;
}

.form-actions .btn-secondary {
    background-color: #6b7280;
    color: white;
    border-color: #6b7280;
}

/* Import Modal Styles */
.import-info {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.import-info p {
    margin: 0 0 0.5rem 0;
    font-size: 0.9rem;
}

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

.file-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.5rem;
    padding: 0.5rem;
    background-color: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

.file-info span {
    font-size: 0.9rem;
    color: var(--text-color);
}

.transaction-form-section {
    margin-bottom: 2rem;
}

.transaction-form {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.stat-loss .stat-value {
    color: var(--error-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-sm);
    }
    
    .nav-menu {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .stat-card {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
        padding: var(--spacing-lg);
    }
    
    .stat-icon {
        font-size: var(--font-size-2xl);
    }
    
    .stat-value {
        font-size: var(--font-size-xl);
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .section-header {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    .table-controls {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    .search-box {
        min-width: auto;
        width: 100%;
    }
    
    .search-box input {
        width: 100%;
        font-size: var(--font-size-base);
    }
    
    .form-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .form-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .modal {
        padding: var(--spacing-sm);
    }
    
    .modal-content {
        width: 95%;
        max-height: calc(100vh - 2rem);
        border-radius: 12px;
        margin: var(--spacing-sm);
    }
    
    .modal-header {
        padding: var(--spacing-md);
    }
    
    .modal-form {
        padding: var(--spacing-md);
    }
    
    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
        bottom: var(--spacing-md);
    }
    
    .toast {
        min-width: auto;
        max-width: none;
        margin-bottom: var(--spacing-sm);
    }
    
    /* Table Responsiveness */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .transactions-table {
        min-width: 600px;
        font-size: var(--font-size-sm);
    }
    
    .transactions-table th,
    .transactions-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
        white-space: nowrap;
    }
    
    .transaction-actions {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .transaction-actions .btn {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
    }
    
    /* Button Improvements */
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
        min-height: 44px;
    }
    
    .btn-small {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        min-height: 36px;
    }
    
    /* Form Improvements */
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: var(--spacing-sm);
        font-size: var(--font-size-base);
        min-height: 44px;
    }
    
    /* Import Modal Improvements */
    .import-info {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }
    
    .import-info p {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-xs);
    }
    
    .file-info {
        padding: var(--spacing-sm);
        margin-top: var(--spacing-sm);
    }
    
    .file-info span {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: var(--spacing-md) 0;
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .header-content {
        padding: var(--spacing-xs);
    }
    
    .nav-menu {
        gap: var(--spacing-xs);
    }
    
    .nav-link {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
    }
    
    .page-header h1 {
        font-size: var(--font-size-xl);
    }
    
    .page-header p {
        font-size: var(--font-size-sm);
    }
    
    .stat-card {
        padding: var(--spacing-md);
    }
    
    .stat-value {
        font-size: var(--font-size-lg);
    }
    
    .stat-icon {
        font-size: var(--font-size-xl);
    }
    
    .form-section,
    .table-section {
        padding: var(--spacing-md);
    }
    
    .section-header h2 {
        font-size: var(--font-size-lg);
    }
    
    .transactions-table {
        min-width: 500px;
        font-size: var(--font-size-xs);
    }
    
    .transactions-table th,
    .transactions-table td {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        min-height: 40px;
    }
    
    .btn-small {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
        min-height: 32px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: var(--spacing-xs);
        font-size: var(--font-size-sm);
        min-height: 40px;
    }
    
    .modal-content {
        width: 98%;
        margin: var(--spacing-xs);
    }
    
    .modal-header {
        padding: var(--spacing-sm);
    }
    
    .modal-form {
        padding: var(--spacing-sm);
    }
    
    .toast {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
    }
    
    .pagination-btn {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
        min-width: 32px;
        min-height: 32px;
    }
    
    .pagination-info {
        font-size: var(--font-size-xs);
    }
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.header-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Bulk Actions */
.bulk-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--background);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.bulk-actions span {
    font-weight: 600;
    color: var(--text-secondary);
}

/* Table Actions */
.table-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.table-actions select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--surface);
    font-size: var(--font-size-sm);
}

/* Pagination Styles */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.pagination-info {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.pagination {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pagination-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    background-color: var(--surface);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: var(--font-size-sm);
    min-width: 36px;
    text-align: center;
}

.pagination-btn:hover:not(.disabled) {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-btn.disabled {
    background-color: var(--background);
    color: var(--text-light);
    cursor: not-allowed;
}

.pagination-ellipsis {
    padding: var(--spacing-sm);
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

/* Category Badge */
.category-badge {
    background-color: var(--background);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Responsive Pagination */
@media (max-width: 768px) {
    .pagination-container {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    
    .pagination {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .page-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    
    .header-actions {
        justify-content: center;
    }
    
    .bulk-actions {
        justify-content: center;
    }
    
    .table-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    

    
    .project-stats {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .project-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .project-actions .btn {
        flex: none;
    }
    
    .header-flex {
        flex-direction: column;
        gap: 1.5rem;
        align-items: stretch;
        padding: 1rem;
        text-align: center;
    }
    
    .header-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .project-card {
        padding: 1rem;
    }
    

    
    .project-header {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
    
    .project-color {
        margin-left: 0;
        align-self: flex-start;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .transaction-form {
        padding: 1rem;
    }
    
    .transaction-form-section .section-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .section-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* Mobile Touch Improvements */
@media (max-width: 768px) {
    /* Improve touch targets */
    .btn,
    .nav-link,
    .modal-close,
    .pagination-btn,
    .transaction-actions .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Better header on mobile */
    .header {
        padding: var(--spacing-sm) 0;
    }
    
    .logo {
        font-size: var(--font-size-lg);
    }
    
    .logo i {
        font-size: var(--font-size-xl);
    }
    
    /* Improve navigation on mobile */
    .nav-menu {
        justify-content: space-around;
        width: 100%;
    }
    
    .nav-link {
        flex: 1;
        justify-content: center;
        text-align: center;
        border-radius: var(--radius-md);
    }
    
    /* Better page headers on mobile */
    .page-header {
        margin-bottom: var(--spacing-lg);
    }
    
    .header-flex {
        text-align: center;
    }
    
    .header-flex h1 {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-xs);
    }
    
    .header-flex p {
        font-size: var(--font-size-sm);
        color: var(--text-secondary);
    }
    
    /* Improve stats cards on mobile */
    .stat-card {
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
    }
    
    .stat-content h3 {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-xs);
    }
    
    .stat-value {
        font-size: var(--font-size-xl);
        font-weight: 700;
    }
    
    .stat-label {
        font-size: var(--font-size-xs);
        color: var(--text-secondary);
    }
    
    /* Better form layout on mobile */
    .form-grid {
        gap: var(--spacing-md);
    }
    
    .form-group label {
        font-size: var(--font-size-sm);
        font-weight: 600;
        margin-bottom: var(--spacing-xs);
    }
    
    /* Improve table responsiveness */
    .table-section {
        margin-top: var(--spacing-lg);
    }
    
    .section-header {
        margin-bottom: var(--spacing-md);
    }
    
    .section-header h2 {
        font-size: var(--font-size-lg);
    }
    
    /* Better modal experience on mobile */
    .modal {
        align-items: flex-end;
        padding: 0;
    }
    
    .modal-content {
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        margin: 0;
        max-height: 90vh;
        overflow-y: auto;
    }
    
    /* Improve toast notifications on mobile */
    .toast {
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-lg);
    }
    
    /* Better project cards on mobile */
    .project-card {
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
    }
    
    .project-name {
        font-size: var(--font-size-lg);
    }
    
    .project-description {
        font-size: var(--font-size-sm);
    }
    
    /* Improve import modal on mobile */
    .import-info {
        border-radius: var(--radius-md);
        margin-bottom: var(--spacing-md);
    }
    
    .file-info {
        border-radius: var(--radius-md);
    }
    
    /* Prevent zoom on input focus for iOS */
    .form-group input[type="text"],
    .form-group input[type="number"],
    .form-group input[type="date"],
    .form-group select,
    .form-group textarea {
        font-size: 16px;
    }
    
    /* Better scrolling for tables */
    .table-container {
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
    }
    
    .table-container::-webkit-scrollbar {
        height: 6px;
    }
    
    .table-container::-webkit-scrollbar-track {
        background: var(--border-color);
        border-radius: 3px;
    }
    
    .table-container::-webkit-scrollbar-thumb {
        background: var(--primary-color);
        border-radius: 3px;
    }
    
    /* Improve form inputs on mobile */
    .form-group input[type="date"],
    .form-group input[type="number"],
    .form-group select {
        -webkit-appearance: none;
        appearance: none;
        background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
        background-repeat: no-repeat;
        background-position: right 8px center;
        background-size: 16px;
        padding-right: 32px;
    }
    
    /* Better modal handling */
    .modal {
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
    }
    
    /* Improve toast positioning */
    .toast-container {
        z-index: 1000;
    }
    
    /* Better project cards on mobile */
    .project-card {
        margin-bottom: var(--spacing-md);
    }
    
    .project-stats {
        margin-top: var(--spacing-sm);
    }
    
    /* Improve search box */
    .search-box {
        position: relative;
    }
    
    .search-box i {
        position: absolute;
        left: 12px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-muted);
        pointer-events: none;
    }
    
    .search-box input {
        padding-left: 40px;
    }
}

/* Extra small devices */
@media (max-width: 360px) {
    .container {
        padding: 0 8px;
    }
    
    .header-content {
        padding: 8px;
    }
    
    .nav-link {
        padding: 8px;
        font-size: 12px;
    }
    
    .btn {
        padding: 8px 12px;
        font-size: 12px;
        min-height: 36px;
    }
    
    .stat-card {
        padding: 12px;
    }
    
    .stat-value {
        font-size: 18px;
    }
    
    .page-header h1 {
        font-size: 20px;
    }
    
    .transactions-table {
        min-width: 400px;
        font-size: 11px;
    }
    
    .modal-content {
        width: 100%;
        margin: 0;
        border-radius: 0;
        min-height: 100vh;
    }
    
    /* Project view specific mobile improvements */
    .project-title {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .project-title .btn {
        align-self: flex-start;
    }
    
    .project-badge {
        align-self: center;
        margin-top: var(--spacing-sm);
    }
    
    /* Better table scrolling on mobile */
    .table-container {
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
    }
    
    /* Improve form spacing on mobile */
    .transaction-form {
        margin-top: var(--spacing-md);
    }
    
    .form-actions {
        gap: var(--spacing-sm);
    }
    
    /* Better button spacing in section actions */
    .section-actions {
        gap: var(--spacing-sm);
    }
    
    .section-actions .btn {
        flex: 1;
        min-width: 0;
    }
    
    /* Improve pagination on mobile */
    .pagination {
        gap: var(--spacing-xs);
    }
    
    .pagination-btn {
        min-width: 36px;
        min-height: 36px;
        font-size: var(--font-size-xs);
    }
    
    /* Better bulk actions on mobile */
    .bulk-actions {
        padding: var(--spacing-sm);
        border-radius: var(--radius-md);
        background-color: var(--bg-secondary);
        border: 1px solid var(--border-color);
    }
    
    /* Improve search box on mobile */
    .search-box {
        background-color: var(--bg-primary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
    }
    
    /* Better table actions on mobile */
    .table-actions {
        background-color: var(--bg-secondary);
        padding: var(--spacing-sm);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
    }
    
    /* Improve loading states on mobile */
    .loading-overlay {
        backdrop-filter: blur(2px);
        -webkit-backdrop-filter: blur(2px);
    }
    
    .loading-spinner {
        background-color: var(--bg-primary);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-lg);
    }
    
    /* Better empty states on mobile */
    .empty-state {
        padding: var(--spacing-xl);
        text-align: center;
    }
    
    .empty-state .empty-icon {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--spacing-md);
        color: var(--text-muted);
    }
    
    /* Improve category badges on mobile */
    .category-badge {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    /* Better project badges on mobile */
    .project-badge {
        font-size: var(--font-size-sm);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* Login Page Styles */
.login-page {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: var(--card-background);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl);
    text-align: center;
}

.login-header {
    margin-bottom: var(--spacing-2xl);
}

.login-header .logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.login-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.login-header p {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

.login-form {
    text-align: left;
}

.login-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.login-form label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.login-form label i {
    color: var(--primary-color);
    width: 16px;
}

.login-form input[type="text"],
.login-form input[type="password"] {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    background-color: var(--bg-primary);
}

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

.password-input {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.password-toggle:hover {
    color: var(--primary-color);
    background-color: var(--bg-secondary);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    background-color: var(--bg-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: white;
    font-size: 12px;
}

.btn-login {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.login-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.login-footer p {
    margin: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.login-footer p:first-child {
    font-weight: 600;
    color: var(--text-primary);
}

/* Mobile responsive for login */
@media (max-width: 480px) {
    .login-page {
        padding: var(--spacing-sm);
    }
    
    .login-card {
        padding: var(--spacing-xl);
    }
    
    .login-header h1 {
        font-size: var(--font-size-xl);
    }
    
    .btn-login {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-base);
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-success {
    color: var(--success-color);
}

.text-error {
    color: var(--error-color);
}

.text-warning {
    color: var(--warning-color);
}

.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Invoice Generator Styles */
.invoice-generator-section {
    margin-bottom: 2rem;
    margin-top: 0;
    padding-top: 0;
}

/* Reduce main content padding for invoice page */
body:has(.invoice-generator-section) .main-content {
    padding: 1rem 0;
}

.invoice-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

.invoice-container.show-preview {
    grid-template-columns: 1fr 1fr;
}

.invoice-form-container {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    max-width: 100%;
    overflow-x: hidden;
    margin-top: 0;
}

.invoice-form-container h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    border: 1px solid #e1e8ed;
    border-radius: 8px;
    background: #f8f9fa;
    width: 100%;
    box-sizing: border-box;
}

.form-section h3 {
    color: #34495e;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 0.9rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.invoice-items-container {
    margin-bottom: 1rem;
}

.invoice-item {
    background: white;
    padding: 1rem;
    border: 1px solid #e1e8ed;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.item-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr auto;
    gap: 1rem;
    align-items: end;
}

.item-description input {
    width: 100%;
}

.item-quantity input,
.item-rate input {
    width: 100%;
    text-align: center;
}

.item-amount input {
    width: 100%;
    text-align: right;
    background: #f8f9fa;
    font-weight: 600;
}

.remove-item-btn {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.remove-item-btn:hover {
    background: #c0392b;
}

.add-item-btn {
    background: #27ae60;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.3s;
}

.add-item-btn:hover {
    background: #229954;
}

.invoice-summary {
    background: white;
    padding: 1.5rem;
    border-radius: 5px;
    border: 1px solid #e1e8ed;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f2f6;
}

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

.summary-row.total-row {
    font-weight: 700;
    font-size: 1.2rem;
    color: #2c3e50;
    border-top: 2px solid #3498db;
    padding-top: 1rem;
    margin-top: 0.5rem;
}

.summary-row input {
    width: 80px;
    text-align: center;
    padding: 0.25rem;
    border: 1px solid #ddd;
    border-radius: 3px;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-success:hover {
    background: #229954;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

/* Invoice Preview */
.invoice-preview-container {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    display: none;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e1e8ed;
}

.preview-header h2 {
    color: #2c3e50;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.close-preview-btn {
    background: #95a5a6;
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.close-preview-btn:hover {
    background: #7f8c8d;
}

.invoice-document {
    background: white;
    padding: 2rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: 'Arial', sans-serif;
}

.invoice-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #3498db;
}

.company-info h2 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.company-info p {
    margin: 0.25rem 0;
    color: #7f8c8d;
}

.invoice-info h1 {
    color: #3498db;
    font-size: 2rem;
    margin-bottom: 1rem;
    text-align: right;
}

.invoice-info p {
    margin: 0.25rem 0;
    text-align: right;
    color: #2c3e50;
}

.client-info {
    margin-bottom: 2rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 5px;
}

.client-info h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.client-info p {
    margin: 0.25rem 0;
    color: #34495e;
}

.invoice-items {
    margin-bottom: 2rem;
}

.invoice-items table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.invoice-items th {
    background: #3498db;
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.invoice-items td {
    padding: 1rem;
    border-bottom: 1px solid #e1e8ed;
}

.invoice-items tr:nth-child(even) {
    background: #f8f9fa;
}

.invoice-summary {
    margin-bottom: 2rem;
}

.invoice-summary .summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f2f6;
}

.invoice-summary .summary-row.total {
    font-weight: 700;
    font-size: 1.2rem;
    color: #2c3e50;
    border-top: 2px solid #3498db;
    padding-top: 1rem;
    margin-top: 0.5rem;
}

.invoice-notes {
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 4px solid #3498db;
}

.invoice-notes h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.invoice-notes p {
    color: #34495e;
    line-height: 1.6;
}

/* Saved Invoices */
.saved-invoices-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.saved-invoices-section h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.invoices-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.invoice-card {
    background: #f8f9fa;
    border: 1px solid #e1e8ed;
    border-radius: 8px;
    padding: 1.5rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.invoice-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.invoice-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e1e8ed;
}

.invoice-card-header h3 {
    color: #2c3e50;
    margin: 0;
}

.invoice-date {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.invoice-card-body p {
    margin: 0.5rem 0;
    color: #34495e;
}

.invoice-card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e1e8ed;
}

.no-invoices {
    text-align: center;
    color: #7f8c8d;
    font-style: italic;
    grid-column: 1 / -1;
    padding: 2rem;
}

/* Notifications */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 5px;
    color: white;
    font-weight: 600;
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s;
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    background: #27ae60;
}

.notification-error {
    background: #e74c3c;
}

.notification-info {
    background: #3498db;
}

/* PDF Version */
.invoice-document.pdf-version {
    width: 210mm;
    min-height: 297mm;
    margin: 0;
    padding: 20mm;
    box-sizing: border-box;
    background: white;
}

/* Invoice Mobile Responsiveness */
@media (max-width: 768px) {
    .invoice-container,
    .invoice-container.show-preview {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .invoice-form-container,
    .invoice-preview-container,
    .saved-invoices-section {
        padding: 1rem;
    }
    
    .form-section {
        padding: 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .item-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .item-description,
    .item-quantity,
    .item-rate,
    .item-amount {
        grid-column: 1;
    }
    
    .item-action {
        grid-column: 1;
        text-align: center;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .invoice-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .invoice-info h1 {
        text-align: center;
    }
    
    .invoice-info p {
        text-align: center;
    }
    
    .invoices-list {
        grid-template-columns: 1fr;
    }
    
    .invoice-card-actions {
        flex-direction: column;
    }
    
    .notification {
        right: 10px;
        left: 10px;
        transform: translateY(-100%);
    }
    
    .notification.show {
        transform: translateY(0);
    }
}

/* Mobile Touch Improvements */
@media (max-width: 768px) {
    /* Ensure all interactive elements are touch-friendly */
    button, 
    input[type="button"], 
    input[type="submit"], 
    input[type="reset"],
    .btn,
    .nav-link,
    .modal-close,
    .remove-item-btn,
    .add-item-btn,
    .close-preview-btn {
        min-height: 44px;
        min-width: 44px;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        user-select: none;
        cursor: pointer !important;
        pointer-events: auto !important;
        position: relative;
        z-index: 1;
    }
    
    /* Force pointer events on all interactive elements */
    *[onclick], 
    *[onclick*], 
    button, 
    .btn, 
    .nav-link, 
    input[type="submit"], 
    input[type="button"] {
        pointer-events: auto !important;
        cursor: pointer !important;
    }
    
    /* Improve form inputs for mobile */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="tel"],
    input[type="date"],
    input[type="search"],
    select,
    textarea {
        font-size: 16px !important; /* Prevents zoom on iOS */
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
    
    /* Improve table interactions */
    .transactions-table tbody tr {
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
    
    /* Improve modal interactions */
    .modal-overlay {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
    
    /* Improve navigation */
    .nav-menu {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
    
    /* Improve card interactions */
    .stat-card,
    .project-card,
    .invoice-card {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        cursor: pointer;
    }
    
    /* Ensure proper spacing for touch targets */
    .form-actions .btn,
    .project-actions .btn,
    .transaction-actions .btn,
    .invoice-card-actions .btn {
        margin: 4px;
        padding: 12px 16px;
    }
    
    /* Improve search box */
    .search-box input {
        font-size: 16px !important;
        padding: 12px 16px 12px 40px;
    }
    
    /* Improve pagination */
    .pagination-btn {
        min-width: 44px;
        min-height: 44px;
        padding: 12px;
    }
}