/**
 * Finansowy Tracker - Główne style CSS
 * Design: Mobile-first, Progressive enhancement
 * Layout: Flexbox + CSS Grid
 */

/* ================================
   ZMIENNE CSS I KOLORY
   ================================ */
:root {
    /* Kolory główne */
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #3498db;
    
    /* Kolory dla typów transakcji */
    --dochod-color: #27ae60;
    --wydatek-color: #e74c3c;
    
    /* Kolory neutralne */
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --bg-primary: #ffffff;
    --bg-secondary: #ecf0f1;
    --border-color: #bdc3c7;
    
    /* Cienie */
    --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 8px 16px rgba(0, 0, 0, 0.15);
    
    /* Wymiary */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Rozmiary czcionek */
    --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;
    
    /* Wagi czcionek */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Rozmiary komponentów */
    --nav-height: 64px;
    --header-height: 60px;
    --border-radius: 8px;
    
    /* Przejścia */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Ciemny motyw */
body.dark-theme {
    --primary-color: #ecf0f1;
    --text-primary: #ecf0f1;
    --text-secondary: #bdc3c7;
    --bg-primary: #2c3e50;
    --bg-secondary: #34495e;
    --border-color: #455a64;
}

/* ================================
   RESET I TYPOGRAFIA
   ================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-md); }
h6 { font-size: var(--font-size-sm); }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-color);
}

/* ================================
   UKŁAD GŁÓWNY
   ================================ */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--bg-primary);
    position: relative;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%);
    color: white;
    box-shadow: var(--shadow-medium);
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
}

.app-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin: 0;
    white-space: nowrap;
}

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

.sync-status {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    background-color: rgba(39, 174, 96, 0.2);
    color: #27ae60;
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-normal);
}

.sync-status.offline {
    background-color: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
}

.app-main {
    flex: 1;
    padding-bottom: var(--nav-height);
    overflow-y: auto;
    overflow-x: hidden;
}

/* ================================
   EKRANY
   ================================ */
.ekran {
    display: none;
    padding: var(--spacing-lg);
    animation: fadeIn var(--transition-normal);
}

.ekran.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================================
   EKRAN GŁÓWNY - DASHBOARD
   ================================ */
.dashboard-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.summary-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.summary-card {
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.summary-card.dochód {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: white;
}

.summary-card.wydatek {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    color: white;
}

.summary-card.bilans {
    background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
    color: white;
}

.summary-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    opacity: 0.9;
    display: block;
    margin-bottom: var(--spacing-xs);
}

.summary-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    display: block;
}

/* ================================
   PRZEGLĄD MIESIĘCZNY
   ================================ */
.monthly-overview {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    border-left: 4px solid var(--secondary-color);
}

.monthly-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.monthly-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
}

.monthly-date {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: var(--font-weight-normal);
}

.monthly-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-md);
    align-items: center;
}

.monthly-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-md) 0;
}

.monthly-stat.divider {
    height: 40px;
    width: 1px;
    background-color: var(--border-color);
    padding: 0;
    margin: 0;
}

.monthly-stat .stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: var(--font-weight-normal);
    margin-bottom: var(--spacing-xs);
}

.monthly-stat .stat-value {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

.monthly-stat .stat-value.income {
    color: var(--dochod-color);
}

.monthly-stat .stat-value.expense {
    color: var(--wydatek-color);
}

.recent-transactions {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-light);
}

.recent-transactions h2 {
    margin-top: 0;
}

.transaction-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.transaction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--secondary-color);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.transaction-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-medium);
}

.transaction-item.dochód {
    border-left-color: var(--dochod-color);
}

.transaction-item.wydatek {
    border-left-color: var(--wydatek-color);
}

.transaction-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
}

.transaction-category {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-md);
}

.transaction-date {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.transaction-amount {
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    text-align: right;
    min-width: 100px;
}

.transaction-amount.dochód {
    color: var(--dochod-color);
}

.transaction-amount.wydatek {
    color: var(--wydatek-color);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    color: var(--text-secondary);
    font-style: italic;
}

/* ================================
   FORMULARZE
   ================================ */
.form-container {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.transaction-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-md);
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* ================================
   PRZYCISKI
   ================================ */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex: 1;
}

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

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-primary:active {
    transform: translateY(0);
}

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

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

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

.btn-danger:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-danger:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ================================
   STATYSTYKI
   ================================ */
.statistics-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.filter-group {
    flex: 1;
    min-width: 150px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.filter-group label {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
}

.filter-group input,
.filter-group select {
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.stats-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--secondary-color) 0%, #2980b9 100%);
    border-radius: var(--border-radius);
    color: white;
    text-align: center;
    box-shadow: var(--shadow-medium);
}

.stat-card h3 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    margin: 0 0 var(--spacing-md) 0;
    opacity: 0.9;
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin: 0;
}

.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.chart-wrapper {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.chart-wrapper h3 {
    margin-top: 0;
    text-align: center;
}

.chart-canvas {
    max-height: 350px;
    width: 100% !important;
    height: auto !important;
    display: block;
    margin: 0 auto;
}

.categories-table {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    overflow-x: auto;
}

.categories-table h3 {
    margin-top: 0;
}

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

table thead {
    background-color: var(--bg-secondary);
}

table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: var(--font-weight-semibold);
}

table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

table tbody tr:hover {
    background-color: var(--bg-secondary);
}

/* ================================
   USTAWIENIA
   ================================ */
.settings-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.settings-section {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border-left: 4px solid var(--secondary-color);
}

.settings-section.danger {
    border-left-color: var(--accent-color);
}

.settings-section.info {
    border-left-color: var(--info-color);
    opacity: 0.8;
}

.settings-section h3 {
    margin-top: 0;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-md);
}

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

.setting-item label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    margin: 0;
}

.setting-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--secondary-color);
}

.setting-item input[type="text"],
.setting-item input[type="number"],
.setting-item select {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.setting-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.setting-buttons .btn {
    flex: 1;
    min-width: 120px;
}

/* ================================
   ZARZĄDZANIE KATEGORIAMI
   ================================ */
.categories-management {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.category-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.category-group h4 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.category-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.category-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.category-tag:hover {
    border-color: var(--accent-color);
    background-color: rgba(231, 76, 60, 0.1);
}

.category-tag .remove-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    color: var(--accent-color);
    font-size: var(--font-size-md);
    display: flex;
    align-items: center;
    line-height: 1;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.category-tag:hover .remove-btn {
    opacity: 1;
}

.add-category-form {
    display: flex;
    gap: var(--spacing-sm);
}

.add-category-form input {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.add-category-form input:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

/* ================================
   NAWIGACJA DOLNA
   ================================ */
.app-navigation {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background-color: var(--bg-primary);
    border-top: 2px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: var(--shadow-heavy);
    z-index: 99;
}

.nav-btn {
    flex: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    border: none;
    background: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    font-size: var(--font-size-sm);
}

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

.nav-btn.active {
    color: var(--secondary-color);
    font-weight: var(--font-weight-semibold);
}

.nav-btn.active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background-color: var(--secondary-color);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.nav-icon {
    font-size: var(--font-size-xl);
    display: block;
}

.nav-label {
    font-size: var(--font-size-xs);
    display: block;
    max-width: 50px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ================================
   POWIADOMIENIA
   ================================ */
.notifications-container {
    position: fixed;
    top: var(--header-height);
    right: var(--spacing-md);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 400px;
}

.notification {
    padding: var(--spacing-lg);
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-heavy);
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: var(--spacing-md);
    animation: slideIn var(--transition-normal);
    min-width: 300px;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

.notification.removing {
    animation: slideOut var(--transition-normal);
}

.notification.success {
    border-left: 4px solid var(--success-color);
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.1), rgba(39, 174, 96, 0.05));
}

.notification.error {
    border-left: 4px solid var(--accent-color);
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.1), rgba(231, 76, 60, 0.05));
}

.notification.warning {
    border-left: 4px solid var(--warning-color);
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.1), rgba(243, 156, 18, 0.05));
}

.notification.info {
    border-left: 4px solid var(--info-color);
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1), rgba(52, 152, 219, 0.05));
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.notification-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.4;
}

.notification-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--font-size-lg);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    transition: color var(--transition-fast);
}

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

/* ================================
   UTILITY CLASSES
   ================================ */
.hidden {
    display: none !important;
}

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

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

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.text-muted {
    color: var(--text-secondary);
}

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

.text-danger {
    color: var(--accent-color);
}

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

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

/* ================================
   PRINT STYLES
   ================================ */
@media print {
    .app-header,
    .app-navigation,
    .notifications-container,
    .btn,
    .fab-button {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .app-main {
        padding-bottom: 0;
    }
}

/* ================================
   FAB - FLOATING ACTION BUTTON
   ================================ */
.fab-button {
    position: fixed;
    bottom: calc(var(--nav-height) + var(--spacing-lg));
    right: var(--spacing-lg);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary-color), var(--info-color));
    color: white;
    border: none;
    box-shadow: var(--shadow-heavy);
    cursor: pointer;
    font-size: var(--font-size-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    z-index: 50;
}

.fab-button:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 24px rgba(52, 152, 219, 0.4);
}

.fab-button:active {
    transform: scale(0.95);
}

.fab-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fab-pulse 2s infinite;
}

@keyframes fab-pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* Responsywne */
@media (max-width: 480px) {
    .fab-button {
        width: 50px;
        height: 50px;
        bottom: calc(var(--nav-height) + 10px);
        right: 10px;
        font-size: var(--font-size-xl);
    }
}