/* BongoPos - Enhanced Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    text-decoration: none;
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 1rem;
    list-style: none;
    align-items: center;
    flex-wrap: wrap;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.8;
}

/* Header Info */
.header-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.store-name, .user-info {
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

/* Sidebar Layout */
.dashboard-layout {
    display: flex;
    min-height: calc(100vh - 80px);
    background: #f8f9fa;
}

.sidebar {
    width: 260px;
    background: white;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: sticky;
    top: 80px;
    height: calc(100vh - 80px);
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar-nav {
    list-style: none;
    padding: 0 1rem;
}

.sidebar-nav li {
    margin-bottom: 0.25rem;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: #555;
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 8px;
    font-weight: 500;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateX(5px);
}

.main-content {
    flex: 1;
    padding: 2rem;
    min-height: calc(100vh - 80px);
    overflow-y: auto;
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    padding: 1.5rem;
    margin-bottom: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

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

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin: 0;
}

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

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border-left: 4px solid #667eea;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: #333;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stat-label {
    color: #666;
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s;
    text-align: center;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5a6fd8;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

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

.btn-warning {
    background: #ffc107;
    color: #212529;
}

.btn-warning:hover {
    background: #e0a800;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-block {
    display: block;
    width: 100%;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-control {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 0.9rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.table th,
.table td {
    padding: 0.8rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
}

.table tbody tr:hover {
    background: #f8f9fa;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* POS Specific Styles */
.pos-container {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
    height: calc(100vh - 200px);
}

.pos-products {
    background: white;
    border-radius: 10px;
    padding: 1rem;
    overflow-y: auto;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
}

.product-item {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.product-item:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.product-item.selected {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.pos-cart {
    background: white;
    border-radius: 10px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    margin-bottom: 1rem;
}

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

.cart-total {
    border-top: 2px solid #333;
    padding-top: 1rem;
    margin-bottom: 1rem;
}

/* Search */
.search-box {
    position: relative;
    margin-bottom: 1rem;
}

.search-input {
    width: 100%;
    padding: 0.8rem 2.5rem 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: 25px;
    font-size: 0.9rem;
}

.search-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
}

/* Enhanced Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }
    
    .sidebar {
        width: 240px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 992px) {
    .header .container {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .header-info {
        justify-content: center;
    }
    
    .sidebar {
        width: 220px;
    }
    
    .main-content {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .dashboard-layout {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        order: 2;
        position: static;
        height: auto;
        transform: none;
    }
    
    .sidebar-nav {
        padding: 0;
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: center;
    }
    
    .sidebar-nav li {
        margin: 0;
        flex: 1 1 auto;
        min-width: 120px;
    }
    
    .sidebar-nav a {
        text-align: center;
        padding: 0.75rem 0.5rem;
        font-size: 0.85rem;
    }
    
    .main-content {
        order: 1;
        padding: 1rem;
    }
    
    .header {
        padding: 0.75rem 0;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .header-info {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .pos-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .logo {
        font-size: 1.3rem;
    }
    
    .main-content {
        padding: 0.75rem;
    }
    
    .card {
        padding: 0.75rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .sidebar-nav a {
        padding: 0.5rem 0.25rem;
        font-size: 0.8rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 0.5rem;
    }
    
    .product-card {
        padding: 0.5rem;
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
    
    .table-responsive {
        font-size: 0.85rem;
    }
    
    .session-timer {
        font-size: 0.7rem;
        padding: 2px 4px;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .sidebar {
        transform: translateX(-100%);
        position: fixed;
        top: 0;
        left: 0;
        z-index: 999;
        transition: transform 0.3s ease;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 998;
    }
    
    .overlay.active {
        display: block;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus States */
.btn:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .sidebar,
    .header,
    .btn,
    .session-timer {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
        margin: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
        break-inside: avoid;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    .print-only {
        display: block !important;
    }
}