/* public/css/style.css */

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-color: #2E7D32;
    --primary-dark: #1B5E20;
    --primary-light: #4CAF50;
    --primary-soft: #E8F5E9;
    --secondary-color: #FFC107;
    --secondary-dark: #FFA000;
    --secondary-light: #FFECB3;
    --danger-color: #dc3545;
    --danger-dark: #bd2130;
    --danger-light: #f8d7da;
    --success-color: #28a745;
    --success-dark: #218838;
    --success-light: #d4edda;
    --warning-color: #ffc107;
    --warning-dark: #e0a800;
    --warning-light: #fff3cd;
    --info-color: #17a2b8;
    --text-color: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --background: #f5f5f5;
    --card-bg: #ffffff;
    --border-color: #dddddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-circle: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px var(--shadow-color);
    --shadow-md: 0 4px 8px var(--shadow-color);
    --shadow-lg: 0 8px 16px var(--shadow-color);
    --shadow-xl: 0 12px 24px var(--shadow-color);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index layers */
    --z-below: -1;
    --z-normal: 1;
    --z-above: 10;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 1000;
    --z-popover: 2000;
    --z-toast: 3000;
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #1a1a1a;
        --card-bg: #2d2d2d;
        --text-color: #ffffff;
        --text-light: #cccccc;
        --text-muted: #999999;
        --border-color: #404040;
        --shadow-color: rgba(0, 0, 0, 0.3);
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background: var(--background);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    position: relative;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    line-height: 1.2;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.text-bold { font-weight: 700; }

/* ===== SPLASH SCREEN ===== */
.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: var(--z-modal);
    animation: fadeOut 0.5s ease 1s forwards;
}

@keyframes fadeOut {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

.splash-content {
    text-align: center;
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.splash-logo {
    width: 120px;
    height: 120px;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.loader {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-circle);
    border-top-color: white;
    margin: var(--spacing-lg) auto;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ===== APP CONTAINER ===== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== HEADER STYLES ===== */
.app-header {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.header-content h2 {
    margin: 0;
    font-size: 1.25rem;
}

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

.menu-toggle {
    background: transparent;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ===== SIDE MENU ===== */
.side-menu {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100%;
    background: var(--card-bg);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-modal);
    transition: left var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.side-menu.active {
    left: 0;
}

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

.menu-header h3 {
    margin: 0;
    color: var(--primary-color);
}

.close-menu {
    background: transparent;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-light);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

.menu-items {
    flex: 1;
    list-style: none;
    padding: var(--spacing-md) 0;
    overflow-y: auto;
}

.menu-items li a {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-color);
    text-decoration: none;
    transition: background var(--transition-fast);
    gap: var(--spacing-md);
}

.menu-items li a:hover {
    background: var(--primary-soft);
}

.menu-icon {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.menu-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.user-info {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--background);
    border-radius: var(--radius-md);
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.user-role {
    font-size: 0.875rem;
    color: var(--primary-color);
    text-transform: capitalize;
    background: var(--primary-soft);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    display: inline-block;
    align-self: flex-start;
}

/* Menu Overlay */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-modal) - 1);
    display: none;
    backdrop-filter: blur(3px);
}

.menu-overlay.active {
    display: block;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    padding: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.welcome-section {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.welcome-section h1 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.welcome-text {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ===== CONTENT GRID ===== */
.content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .content-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .quick-actions {
        grid-column: 1 / -1;
    }
    
    .summary-card {
        grid-column: span 1;
    }
    
    .recent-activity {
        grid-column: span 1;
    }
    
    .notifications-card {
        grid-column: 1 / -1;
    }
}

/* ===== CARDS ===== */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-soft);
}

/* ===== BUTTONS ===== */
.btn-primary,
.btn-secondary,
.btn-logout {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--secondary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-logout {
    background: var(--danger-color);
    color: white;
    width: 100%;
    padding: 10px;
    font-size: 0.95rem;
}

.btn-logout:hover {
    background: var(--danger-dark);
}

/* Action Buttons Grid */
.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-light);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text-color);
    transition: all var(--transition-fast);
}

.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 var(--primary-soft);
}

.form-group input:read-only {
    background: var(--background);
    cursor: not-allowed;
}

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

/* ===== BALANCE DISPLAY ===== */
.balance-display {
    text-align: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-soft), var(--card-bg));
    border-radius: var(--radius-lg);
}

.balance-label {
    display: block;
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.balance-amount {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

/* ===== STATS GRID ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--background);
    border-radius: var(--radius-md);
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* ===== ACTIVITY LIST ===== */
.activity-list {
    max-height: 300px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.activity-item:hover {
    background: var(--background);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.activity-amount {
    font-weight: 600;
    color: var(--primary-color);
}

/* ===== NOTIFICATIONS ===== */
.notifications-list {
    max-height: 200px;
    overflow-y: auto;
}

.no-notifications {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-lg);
    font-style: italic;
}

/* ===== BOTTOM NAVIGATION ===== */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--card-bg);
    box-shadow: 0 -2px 10px var(--shadow-color);
    padding: var(--spacing-xs) 0;
    z-index: var(--z-sticky);
}

@media (max-width: 768px) {
    .bottom-nav {
        display: flex;
        justify-content: space-around;
        align-items: center;
    }
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-sm);
    background: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.nav-item:hover,
.nav-item.active {
    color: var(--primary-color);
}

.nav-icon {
    font-size: 1.25rem;
    margin-bottom: 2px;
}

.nav-label {
    font-size: 0.75rem;
}

/* ===== LOGIN PROMPT ===== */
.login-prompt {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: var(--z-modal);
}

.prompt-card {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.prompt-logo {
    width: 100px;
    height: 100px;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

.prompt-card h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.prompt-card p {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.prompt-footer {
    font-size: 0.875rem;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* ===== MODALS ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: var(--z-modal);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: scaleIn 0.3s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

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

.modal-header h3 {
    margin: 0;
}

.modal-header.success h3 {
    color: var(--success-color);
}

.modal-header.warning h3 {
    color: var(--warning-color);
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-light);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

.modal-body {
    padding: var(--spacing-lg);
    max-height: 60vh;
    overflow-y: auto;
}

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

/* ===== TABLES ===== */
.table-responsive {
    overflow-x: auto;
    margin: var(--spacing-md) 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
}

th {
    background: var(--primary-soft);
    color: var(--primary-color);
    font-weight: 600;
    padding: var(--spacing-md);
    text-align: left;
    font-size: 0.95rem;
}

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

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: var(--background);
}

/* ===== TABS ===== */
.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    background: var(--card-bg);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
}

.tab-btn {
    flex: 1;
    min-width: 100px;
    padding: var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-light);
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    background: var(--background);
}

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

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-primary {
    background: var(--primary-soft);
    color: var(--primary-color);
}

.badge-success {
    background: var(--success-light);
    color: var(--success-dark);
}

.badge-danger {
    background: var(--danger-light);
    color: var(--danger-dark);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning-dark);
}

/* ===== LOADING STATES ===== */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-light);
    position: relative;
}

.loading::after {
    content: '';
    display: block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: var(--radius-circle);
    margin: var(--spacing-md) auto;
    animation: spin 1s linear infinite;
}

/* ===== MESSAGES ===== */
.error-message {
    background: var(--danger-light);
    color: var(--danger-dark);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--danger-color);
    margin: var(--spacing-md) 0;
}

.success-message {
    background: var(--success-light);
    color: var(--success-dark);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--success-color);
    margin: var(--spacing-md) 0;
}

.warning-message {
    background: var(--warning-light);
    color: var(--warning-dark);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--warning-color);
    margin: var(--spacing-md) 0;
}

.info-message {
    background: var(--primary-soft);
    color: var(--primary-dark);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
    margin: var(--spacing-md) 0;
}

.result-message {
    margin-top: var(--spacing-lg);
}

/* ===== WHATSAPP LINK ===== */
.whatsapp-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: #25D366;
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.whatsapp-link:hover {
    background: #128C7E;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.whatsapp-link:active {
    transform: translateY(0);
}

/* ===== MEMBERS LIST ===== */
.members-list,
.users-list {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.member-item,
.user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.member-item:last-child,
.user-item:last-child {
    border-bottom: none;
}

.member-item:hover,
.user-item:hover {
    background: var(--background);
}

.member-info {
    flex: 1;
}

.member-name {
    font-weight: 600;
    margin-bottom: 2px;
}

.member-details {
    font-size: 0.875rem;
    color: var(--text-light);
}

.member-role {
    background: var(--primary-soft);
    color: var(--primary-dark);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    text-transform: capitalize;
}

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

/* ===== TRANSACTION LIST ===== */
.transaction-list {
    max-height: 500px;
    overflow-y: auto;
}

.transaction-header {
    display: grid;
    grid-template-columns: 100px 1fr 120px 100px;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-soft);
    font-weight: 600;
    color: var(--primary-dark);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.transaction-row {
    display: grid;
    grid-template-columns: 100px 1fr 120px 100px;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}

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

/* ===== SUMMARY CARD SPECIFIC ===== */
.summary-card .summary-content {
    min-height: 100px;
}

/* ===== PRINT STYLES ===== */
@media print {
    .app-header,
    .side-menu,
    .bottom-nav,
    .btn-primary,
    .btn-secondary,
    .btn-logout,
    .menu-toggle,
    .modal,
    .login-prompt {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
    }
}

/* ===== UTILITY CLASSES ===== */
.m-0 { margin: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.ml-1 { margin-left: var(--spacing-sm); }
.ml-2 { margin-left: var(--spacing-md); }
.mr-1 { margin-right: var(--spacing-sm); }
.mr-2 { margin-right: var(--spacing-md); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.position-relative { position: relative; }
.position-absolute { position: absolute; }
.position-fixed { position: fixed; }

.rounded { border-radius: var(--radius-md); }
.rounded-circle { border-radius: var(--radius-circle); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* ===== RESPONSIVE ADJUSTMENTS ===== */
@media (max-width: 480px) {
    :root {
        --spacing-lg: 16px;
        --spacing-xl: 24px;
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .balance-amount {
        font-size: 2rem;
    }
    
    .action-buttons {
        grid-template-columns: 1fr;
    }
    
    .transaction-header,
    .transaction-row {
        grid-template-columns: 80px 1fr 80px;
        font-size: 0.875rem;
    }
    
    .transaction-header span:last-child,
    .transaction-row span:last-child {
        display: none;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer button {
        width: 100%;
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
}

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

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

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

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

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-light) var(--background);
}