/* Fish Shop Manager - Main Stylesheet */
/* Mobile-First Design */

:root {
    /* Colors */
    --primary: #1e88e5;
    --primary-dark: #1565c0;
    --primary-light: #42a5f5;
    --success: #43a047;
    --success-light: #e8f5e9;
    --warning: #f9a825;
    --warning-light: #fff8e1;
    --danger: #e53935;
    --danger-light: #ffebee;
    --info: #00acc1;
    --info-light: #e0f7fa;
    
    /* Neutrals */
    --bg-primary: #f5f7fa;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

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

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.125rem; }

.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.uppercase { text-transform: uppercase; letter-spacing: 0.5px; }

/* Layout */
.container {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 960px;
    }
}

/* App Shell */
.app-header {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 960px;
    margin: 0 auto;
}

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

.header-title .icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.header-title h1 {
    font-size: 1.125rem;
}

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

/* Offline Banner */
.offline-banner {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 10px var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    display: none;
}

.offline-banner.show {
    display: flex;
}

.offline-banner .status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.offline-banner .sync-btn {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
}

/* Online Status Indicator */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--success-light);
    color: var(--success);
}

.status-indicator.offline {
    background: var(--warning-light);
    color: var(--warning);
}

.status-indicator .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

/* Main Content */
.main-content {
    padding: var(--spacing-md);
    padding-bottom: 100px;
    max-width: 960px;
    margin: 0 auto;
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

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

.card-body {
    padding: var(--spacing-md);
}

.card-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    background: var(--bg-primary);
}

/* Stat Cards */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.stat-card .label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-card .label .icon {
    font-size: 14px;
}

.stat-card .value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card.primary .label { color: var(--primary); }
.stat-card.success .label { color: var(--success); }
.stat-card.warning .label { color: var(--warning); }
.stat-card.danger .label { color: var(--danger); }

/* Quick Actions Grid */
.section-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.action-btn {
    background: var(--bg-card);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg) var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    color: var(--text-primary);
}

.action-btn:hover, .action-btn:active {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.action-btn .icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.action-btn .icon.sale { background: #e3f2fd; }
.action-btn .icon.purchase { background: #e8f5e9; }
.action-btn .icon.customers { background: #fce4ec; }
.action-btn .icon.suppliers { background: #fff3e0; }
.action-btn .icon.stock { background: #e0f2f1; }
.action-btn .icon.expenses { background: #fff8e1; }
.action-btn .icon.labour { background: #f3e5f5; }
.action-btn .icon.reports { background: #e8eaf6; }
.action-btn .icon.history { background: #efebe9; }
.action-btn .icon.backup { background: #eceff1; }
.action-btn .icon.species { background: #e1f5fe; }

.action-btn .label {
    font-size: 0.875rem;
    font-weight: 500;
}

.action-btn .badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
}

.action-btn .icon {
    position: relative;
}

/* Recent Activity */
.activity-list {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.activity-header h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.activity-header a {
    font-size: 0.875rem;
    color: var(--primary);
    text-decoration: none;
}

.activity-item {
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

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

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.activity-icon.purchase { background: #e8f5e9; }
.activity-icon.sale { background: #e3f2fd; }
.activity-icon.expense { background: #fff8e1; }
.activity-icon.payment { background: #f3e5f5; }

.activity-info {
    flex: 1;
    min-width: 0;
}

.activity-title {
    font-weight: 500;
    font-size: 0.9375rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.activity-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.activity-amount {
    font-weight: 600;
    font-size: 0.9375rem;
}

.activity-amount.income { color: var(--success); }
.activity-amount.expense { color: var(--danger); }

/* Sync Status Bar */
.sync-status-bar {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.sync-icon {
    width: 32px;
    height: 32px;
    background: var(--success-light);
    color: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sync-status-bar.pending .sync-icon {
    background: var(--warning-light);
    color: var(--warning);
}

.sync-info {
    flex: 1;
}

.sync-info .text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: var(--bg-secondary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control.error {
    border-color: var(--danger);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-error {
    font-size: 0.75rem;
    color: var(--danger);
    margin-top: 4px;
}

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

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

.input-group .form-control {
    flex: 1;
}

.input-suffix {
    display: flex;
    align-items: center;
    padding: 0 16px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--text-secondary);
}

/* Inline Form Row */
.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

/* Payment Type Tabs */
.payment-tabs {
    display: flex;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 4px;
    gap: 4px;
}

.payment-tab {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.payment-tab.active {
    background: var(--bg-secondary);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

/* Calculated Box */
.calc-box {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.calc-box .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary);
    margin-bottom: 4px;
}

.calc-box .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.calc-box .note {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(30, 136, 229, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #388e3c 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #c62828 100%);
    color: white;
}

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

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

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.0625rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(30, 136, 229, 0.4);
    z-index: 50;
    transition: transform var(--transition-fast);
}

.fab:hover {
    transform: scale(1.1);
}

/* Bottom Action Bar */
.bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    z-index: 90;
}

.bottom-bar .btn {
    width: 100%;
}

/* Lists */
.list-group {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.list-item {
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.list-item:hover {
    background: var(--bg-primary);
}

.list-item .icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.list-item .content {
    flex: 1;
    min-width: 0;
}

.list-item .title {
    font-weight: 500;
    margin-bottom: 2px;
}

.list-item .subtitle {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.list-item .value {
    text-align: right;
}

.list-item .amount {
    font-weight: 600;
}

.list-item .meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.empty-state .icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-overlay.show .modal {
    transform: translateY(0);
}

@media (min-width: 768px) {
    .modal-overlay {
        align-items: center;
    }
    
    .modal {
        border-radius: var(--radius-xl);
        max-height: 85vh;
    }
}

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

.modal-header h2 {
    font-size: 1.125rem;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: var(--spacing-md);
}

.modal-footer .btn {
    flex: 1;
}

/* Page Header */
.page-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.page-header .back-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--primary);
}

.page-header h1 {
    flex: 1;
    font-size: 1.125rem;
}

.page-header .action-btn {
    color: var(--primary);
    background: transparent;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

/* Tabs */
.tabs {
    display: flex;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    overflow-x: auto;
}

.tab {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    background: transparent;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    position: relative;
    white-space: nowrap;
}

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

.tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 3px 3px 0 0;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: calc(100% - 32px);
    max-width: 400px;
}

.toast {
    background: var(--text-primary);
    color: white;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); }

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

/* Loading Spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

/* Search Box */
.search-box {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: var(--bg-secondary);
}

.search-box .icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-primary { background: #e3f2fd; color: var(--primary); }
.badge-success { background: #e8f5e9; color: var(--success); }
.badge-warning { background: #fff8e1; color: #b17d00; }
.badge-danger { background: #ffebee; color: var(--danger); }

/* Divider */
.divider {
    height: 1px;
    background: var(--border-light);
    margin: var(--spacing-md) 0;
}

/* Utility Classes */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.p-md { padding: var(--spacing-md); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.w-full { width: 100%; }

/* Responsive */
@media (min-width: 768px) {
    .quick-actions {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .stat-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Print Styles */
@media print {
    .app-header,
    .bottom-bar,
    .fab,
    .offline-banner {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
    }
}