/* 
 * Zenuni Malergeschäft AG - Verwaltungssystem
 * Hauptstilvorlage
 */

/* ===== Grundlegende Einstellungen ===== */
:root {
    /* Primäre Farbpalette */
    --primary-50: #e6f0ff;
    --primary-100: #cce1ff;
    --primary-200: #99c2ff;
    --primary-300: #66a3ff;
    --primary-400: #3385ff;
    --primary-500: #0066ff;
    --primary-600: #0052cc;
    --primary-700: #003d99;
    --primary-800: #002966;
    --primary-900: #001433;

    /* Neutrale Farbpalette */
    --neutral-50: #f8f9fa;
    --neutral-100: #e9ecef;
    --neutral-200: #dee2e6;
    --neutral-300: #ced4da;
    --neutral-400: #adb5bd;
    --neutral-500: #6c757d;
    --neutral-600: #495057;
    --neutral-700: #343a40;
    --neutral-800: #212529;
    --neutral-900: #0d1117;

    /* Status-Farben */
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;

    /* Layout und Abstände */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

/* ===== Grundlegende Elemente ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Open Sans', -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--neutral-800);
    background-color: var(--neutral-100);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Touch-optimierte Scrolling */
* {
    -webkit-overflow-scrolling: touch;
}

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

/* ===== Header ===== */
.main-header {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: var(--spacing-md) 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 70px;
    display: flex;
    align-items: center;
}

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    top: 70px;
    left: 0;
    bottom: 0;
    width: 250px;
    background-color: white;
    box-shadow: 2px 0 4px rgba(0,0,0,0.1);
    padding: var(--spacing-md);
    z-index: 900;
}

/* ===== Main Content ===== */
.main-content {
    margin-left: 250px;
    margin-top: 70px;
    padding: var(--spacing-xl);
    min-height: calc(100vh - 70px);
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--neutral-200);
}

.page-header h1 {
    margin: 0;
    font-size: 1.75rem;
    color: var(--neutral-800);
}

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

/* ===== Search Form ===== */
.search-form {
    min-width: 300px;
}

.input-group {
    display: flex;
    gap: var(--spacing-sm);
}

/* ===== Cards ===== */
.card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

/* ===== Tables ===== */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    margin-bottom: 0;
    color: var(--neutral-800);
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--spacing-md);
    vertical-align: middle;
    border-bottom: 1px solid var(--neutral-200);
}

.table thead th {
    background-color: var(--neutral-50);
    font-weight: 600;
    text-align: left;
    white-space: nowrap;
}

.table tbody tr:hover {
    background-color: var(--neutral-50);
}

.text-right {
    text-align: right;
}

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

/* ===== Forms ===== */
.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--neutral-700);
    background-color: white;
    border: 1px solid var(--neutral-300);
    border-radius: 4px;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    border-color: var(--primary-400);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 255, 0.25);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    gap: var(--spacing-sm);
    min-height: 44px; /* Touch-optimiert */
}

.btn-primary {
    color: white;
    background-color: var(--primary-500);
    border-color: var(--primary-500);
}

.btn-primary:hover {
    background-color: var(--primary-600);
    border-color: var(--primary-600);
}

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

.btn-danger:hover {
    background-color: #c82333;
    border-color: #bd2130;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    min-height: 36px;
}

.btn-icon {
    font-size: 1.25em;
    line-height: 0;
}

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
}

/* ===== Customer Specific ===== */
.customer-number {
    font-family: monospace;
    color: var(--neutral-600);
}

.no-data {
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--neutral-500);
}

.no-data p {
    margin-bottom: var(--spacing-md);
}

/* ===== Alerts ===== */
.alert {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
    border-radius: 4px;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

/* ===== Statistics Cards ===== */
.stats-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary-500);
}

.stat-card.warning::before {
  background: var(--warning);
}

.stat-card.danger::before {
  background: var(--danger);
}

.stat-card-header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.stat-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  background: var(--primary-50);
  color: var(--primary-600);
}

.stat-card.warning .stat-card-icon {
  background: #fff8e1;
  color: #f59e0b;
}

.stat-card.danger .stat-card-icon {
  background: #fee2e2;
  color: #dc2626;
}

.stat-card-title {
  font-size: 0.875rem;
  color: var(--neutral-600);
  margin: 0;
  font-weight: 500;
}

.stat-card-amount {
  font-size: 1.875rem;
  font-weight: 600;
  color: var(--neutral-900);
  margin: 0.5rem 0;
}

.stat-card-trend {
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.trend-up {
  color: #059669;
}

.trend-down {
  color: #dc2626;
}

/* ===== PWA Styles ===== */
.install-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    border-radius: 25px;
    padding: 12px 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    background: var(--primary-500);
    color: white;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.install-btn:hover {
    background: var(--primary-600);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* ===== Login Page Styles ===== */
.bg-light {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    width: 150px;
    height: auto;
    margin-bottom: auto;
}

.login-header h1 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--neutral-800);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--neutral-600);
    font-size: 0.9rem;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--neutral-700);
    font-size: 0.9rem;
}

.password-field {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.toggle-password:hover {
    background-color: var(--neutral-100);
}

.eye-icon {
    width: 20px;
    height: 20px;
    background-image: url('data:image/svg+xml;utf8,<svg 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"><path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"/><circle cx="12" cy="12" r="3"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    display: block;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.eye-icon.visible {
    background-image: url('data:image/svg+xml;utf8,<svg 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"><path d="M17.94 17.94A10.07 10.07 0 0 1 12 20c-7 0-11-8-11-8a18.45 18.45 0 0 1 5.06-5.94M9.9 4.24A9.12 9.12 0 0 1 12 4c7 0 11 8 11 8a18.5 18.5 0 0 1-2.16 3.19m-6.72-1.07a3 3 0 1 1-4.24-4.24"/><line x1="1" y1="1" x2="23" y2="23"/></svg>');
}

.toggle-password:hover .eye-icon {
    opacity: 1;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin: 0;
}

.form-check-label {
    font-size: 0.9rem;
    color: var(--neutral-600);
    margin: 0;
    cursor: pointer;
}

.btn-block {
    width: 100%;
    justify-content: center;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-primary.btn-block:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(0, 102, 255, 0.3);
}

.login-footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--neutral-200);
}

.forgot-password {
    color: var(--primary-600);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.forgot-password:hover {
    color: var(--primary-700);
    text-decoration: underline;
}

.copyright {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--neutral-500);
}

/* ===== Dashboard Styles ===== */
.page-title {
    margin-bottom: 2rem;
}

.page-title h1 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--neutral-800);
    margin: 0;
}

.welcome-message {
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-500);
}

.welcome-message h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-700);
    margin-bottom: 0.5rem;
}

.welcome-message p {
    color: var(--primary-600);
    margin: 0;
    font-size: 1rem;
}

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

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    border: 1px solid var(--neutral-200);
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--primary-100);
    color: var(--primary-600);
}

.customer-icon {
    background: #e3f2fd;
    color: #1976d2;
}

.project-icon {
    background: #f3e5f5;
    color: #7b1fa2;
}

.quote-icon {
    background: #e8f5e8;
    color: #388e3c;
}

.invoice-icon {
    background: #fff3e0;
    color: #f57c00;
}

.stat-content h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--neutral-600);
    margin: 0 0 0.25rem 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--neutral-800);
    margin: 0;
    line-height: 1;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
}

.dashboard-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 1px solid var(--neutral-200);
}

.card-header {
    padding: 1.5rem;
    background: var(--neutral-50);
    border-bottom: 1px solid var(--neutral-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--neutral-800);
    margin: 0;
}

.view-all {
    color: var(--primary-600);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.view-all:hover {
    color: var(--primary-700);
    text-decoration: underline;
}

.card-body {
    padding: 1.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background: var(--neutral-50);
    padding: 0.75rem;
    font-weight: 600;
    text-align: left;
    color: var(--neutral-700);
    border-bottom: 2px solid var(--neutral-200);
    font-size: 0.875rem;
}

.data-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--neutral-100);
    vertical-align: middle;
}

.data-table tr:hover {
    background-color: var(--neutral-50);
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-planning {
    background: #e3f2fd;
    color: #1976d2;
}

.status-in_progress {
    background: #fff3e0;
    color: #f57c00;
}

.status-review {
    background: #f3e5f5;
    color: #7b1fa2;
}

.status-completed {
    background: #e8f5e8;
    color: #388e3c;
}

.status-cancelled {
    background: #ffebee;
    color: #d32f2f;
}

.status-draft {
    background: #f5f5f5;
    color: #616161;
}

.status-open {
    background: #fff3e0;
    color: #f57c00;
}

.status-paid {
    background: #e8f5e8;
    color: #388e3c;
}

.status-overdue {
    background: #ffebee;
    color: #d32f2f;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--neutral-200);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-500), var(--primary-600));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.75rem;
    color: var(--neutral-600);
    font-weight: 500;
}

/* ===== Customer Management Styles ===== */
.page-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--neutral-200);
}

.page-title h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--neutral-800);
    margin: 0;
}

.card-header {
    padding: 1.5rem;
    background: var(--neutral-50);
    border-bottom: 1px solid var(--neutral-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.search-input {
    padding: 0.5rem 1rem;
    border: 1px solid var(--neutral-300);
    border-radius: 6px;
    font-size: 0.9rem;
    min-width: 250px;
    transition: all 0.2s ease;
}

.search-input:focus {
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
    outline: none;
}

.search-button {
    padding: 0.5rem 1rem;
    background: var(--primary-500);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.search-button:hover {
    background: var(--primary-600);
}

.search-icon {
    width: 16px;
    height: 16px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="11" cy="11" r="8"/><path d="m21 21-4.35-4.35"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    display: block;
}

/* ===== Form Styles ===== */
.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

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

.col-md-4 {
    flex: 0 0 33.333333%;
}

.col-md-6 {
    flex: 0 0 50%;
}

.col-md-8 {
    flex: 0 0 66.666667%;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--neutral-700);
    font-size: 0.9rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--neutral-200);
    margin-top: 2rem;
}

.btn-secondary {
    color: var(--neutral-700);
    background-color: var(--neutral-200);
    border-color: var(--neutral-200);
}

.btn-secondary:hover {
    background-color: var(--neutral-300);
    border-color: var(--neutral-300);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .sidebar {
        width: 280px;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 1001;
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        margin-top: 60px;
        padding: var(--spacing-lg);
    }
    
    .header-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-form {
        min-width: auto;
    }
    
    .page-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    /* Touch-optimierte Buttons */
    .btn {
        min-height: 48px;
        padding: 12px 16px;
    }
    
    .btn-sm {
        min-height: 40px;
        padding: 8px 12px;
    }
    
    .stats-container {
        grid-template-columns: 1fr;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .col-md-4,
    .col-md-6,
    .col-md-8 {
        flex: 1;
    }
    
    .card-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .search-container {
        width: 100%;
    }
    
    .search-input {
        min-width: 100%;
    }
}

@media (max-width: 576px) {
    .main-content {
        padding: var(--spacing-md);
    }
    
    .table-responsive {
        margin: 0 calc(-1 * var(--spacing-md));
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .stats-overview {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    /* Kleinere Schriftgrößen auf sehr kleinen Bildschirmen */
    .page-header h1 {
        font-size: 1.5rem;
    }
    
    .stat-card-amount {
        font-size: 1.5rem;
    }
    
    .login-card {
        padding: 2rem 1.5rem;
    }
    
    .welcome-message {
        padding: 1.5rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
}

/* ===== Touch-optimierte Hover-Effekte ===== */
@media (hover: none) and (pointer: coarse) {
    .btn:hover,
    .stat-card:hover {
        transform: none;
    }
    
    .btn:active {
        transform: scale(0.98);
    }
    
    .stat-card:active {
        transform: scale(0.99);
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== High Contrast Mode ===== */
@media (prefers-contrast: high) {
    .btn-primary {
        border: 2px solid var(--neutral-900);
    }
    
    .card {
        border: 1px solid var(--neutral-400);
    }
}

/* ===== Dark Mode Support (falls gewünscht) ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --neutral-50: #1a1a1a;
        --neutral-100: #2d2d2d;
        --neutral-200: #404040;
        --neutral-300: #525252;
        --neutral-400: #737373;
        --neutral-500: #a3a3a3;
        --neutral-600: #d4d4d4;
        --neutral-700: #e5e5e5;
        --neutral-800: #f5f5f5;
        --neutral-900: #ffffff;
    }
    
    body {
        background-color: var(--neutral-50);
        color: var(--neutral-800);
    }
    
    .card,
    .main-header,
    .sidebar {
        background-color: var(--neutral-100);
    }
}