:root {
    --primary-color: #E91E63;
    --primary-dark: #C2185B;
    --secondary-color: #263238; /* Sidebar bg */
    --bg-color: #121212;
    --surface-color: #1E1E1E;
    --text-color: #ECEFF1;
    --text-muted: #B0BEC5;
    --success-color: #4CAF50;
    --danger-color: #F44336;
    --warning-color: #FF9800;
    --border-color: #37474F;
    
    --sidebar-width: 250px;
    --header-height: 60px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    user-select: none; /* Touch friendly prevention of selection */
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    height: 100vh;
    overflow: hidden;
}

.main-layout {
    display: flex;
    height: 100%;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--secondary-color);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(45deg, var(--primary-color), var(--primary-dark));
}

.sidebar-header h2 {
    font-size: 1.2rem;
    margin-right: 5px;
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    padding: 20px 0;
    flex: 1;
}

.menu-item {
    padding: 15px 25px;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    align-items: center;
    color: var(--text-muted);
    text-decoration: none;
    border-right: 3px solid transparent;
}

.menu-item i {
    width: 30px;
    font-size: 1.1rem;
}

.menu-item:hover, .menu-item.active {
    background-color: rgba(233, 30, 99, 0.1);
    color: var(--primary-color);
    border-right: 3px solid var(--primary-color);
}

/* Main Content */
.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.top-header {
    height: var(--header-height);
    background-color: var(--surface-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
    padding: 5px 10px;
    border-radius: 12px;
    background-color: rgba(255,255,255,0.05);
    margin-right: 10px;
}

.status-badge i { font-size: 0.7rem; }
.internet-status { color: var(--success-color); }

/* Views */
.view {
    display: none;
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background-color: var(--bg-color);
}

.view.active {
    display: block;
    animation: fadeIn 0.3s;
}

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

/* Dashboard */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: var(--surface-color);
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.stat-card .icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.bg-primary { background-color: var(--primary-color); }
.bg-warning { background-color: var(--warning-color); }
.bg-success { background-color: var(--success-color); }

.quick-menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}

.tile {
    background-color: var(--surface-color);
    border-radius: 16px;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.2s;
    border: 1px solid transparent;
}

.tile:hover {
    transform: translateY(-5px);
    background-color: #2c2c2c;
    border-color: var(--primary-color);
}

.tile i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.tile span {
    font-weight: 500;
}

/* POS Layout */
.pos-layout {
    display: flex;
    height: 100%; /* Fill the view */
    gap: 20px;
}

.pos-cart {
    width: 350px;
    background-color: var(--surface-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
}

.cart-header {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(255,255,255,0.02);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.cart-item-info h4 { font-size: 0.95rem; margin-bottom: 4px; }
.cart-item-info small { color: var(--text-muted); }

.cart-item-qty {
    display: flex;
    align-items: center;
    gap: 10px;
}

.qty-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background-color: rgba(0,0,0,0.2);
}

.total-row {
    display: flex;
    justify-content: space-between;
    font-size: 1.4rem;
    font-weight: bold;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.cart-actions {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 10px;
}

.btn {
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    color: white;
    font-size: 1rem;
    transition: opacity 0.2s;
}

.btn:active { transform: scale(0.98); }
.btn-sm {
    padding: 8px 12px;
    font-size: 0.9rem;
}
.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}
.btn-outline:hover {
    background-color: rgba(255,255,255,0.05);
    border-color: var(--text-muted);
}
.btn-danger { background-color: var(--danger-color); }
.btn-success { background-color: var(--success-color); }
.btn-primary { background-color: var(--primary-color); }
.btn-warning { background-color: var(--warning-color); color: #000; }

.pos-products {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* POS Categories - Square Tiles */
.pos-top-controls {
    display: flex;
    flex-direction: column; /* Stack categories above tables button or keep horizontal */
    gap: 10px;
    margin-bottom: 15px;
    overflow-x: auto;
    padding-bottom: 5px;
}

.categories {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); /* Grid layout */
    gap: 10px;
    max-height: 150px; /* Limit height if too many */
    overflow-y: auto;
    width: 100%;
}

.cat-btn {
    background-color: var(--surface-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 10px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    aspect-ratio: 1; /* Make them square */
    transition: all 0.2s;
    font-weight: 500;
}

.cat-btn:hover {
    background-color: #2c2c2c;
}

.cat-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: 0 4px 10px rgba(233, 30, 99, 0.4);
}

.cat-btn i {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.btn-tables {
    background-color: var(--warning-color);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    width: 100%; /* Full width button */
    margin-top: 10px;
}

/* Payment Modal */
.payment-body {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.payment-summary {
    background-color: rgba(0,0,0,0.2);
    padding: 15px;
    border-radius: 8px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.summary-row.large {
    font-size: 1.4rem;
    font-weight: bold;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

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

.form-control {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 8px;
    font-size: 1.2rem;
    text-align: right;
}

.payment-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.payment-actions .btn {
    padding: 20px;
    font-size: 1.1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.payment-history {
    max-height: 150px;
    overflow-y: auto;
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
}

.payment-history h4 {
    margin-bottom: 10px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

#payment-list {
    list-style: none;
}

#payment-list li {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 0.9rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 15px;
    overflow-y: auto;
    padding-right: 5px;
    height: 100%;
    align-content: start; /* Prevent stretching rows to fill height */
}

.product-card {
    background-color: var(--surface-color);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.1s;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    aspect-ratio: 1 / 1; /* Force square shape */
}

.product-card:active {
    transform: scale(0.96);
}

.product-img {
    width: 100%;
    height: 65%; /* Take up more space */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: #333;
}

.product-info {
    padding: 10px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 1;
}

.product-info h4 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.product-price {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.1rem;
    margin-top: auto; /* Push to bottom */
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.7);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active { display: flex; }

.modal-content {
    background-color: var(--bg-color);
    width: 90%;
    max-width: 800px;
    border-radius: 16px;
    padding: 20px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.modal-footer {
    padding-top: 15px;
    margin-top: 15px;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.modal-body {
    overflow-y: auto;
    flex: 1;
    padding-right: 5px;
}

.product-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.full-width {
    grid-column: span 2;
}

@media (max-width: 768px) {
    .product-form-grid {
        grid-template-columns: 1fr;
    }
    .full-width {
        grid-column: span 1;
    }
}

.close-modal {
    font-size: 2rem;
    cursor: pointer;
}

.tables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 20px;
    overflow-y: auto;
}

.table-card {
    aspect-ratio: 1;
    background-color: var(--surface-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: 2px solid transparent;
}

.table-card.active { /* Occupied */
    background-color: rgba(244, 67, 54, 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.table-card.empty { /* Free */
    background-color: rgba(76, 175, 80, 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.table-card i { font-size: 2rem; margin-bottom: 10px; }

/* Tables (Data) */
.table-container {
    background-color: var(--surface-color);
    border-radius: 12px;
    padding: 20px;
    overflow-x: auto;
}

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

.data-table th, .data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th { color: var(--text-muted); font-weight: normal; }

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Form Groups */
.form-group {
    margin-bottom: 15px;
}

/* Image Preview */
.image-preview-wrapper {
    width: 100%;
    height: 200px;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: rgba(0,0,0,0.2);
    margin-bottom: 10px;
    position: relative;
    flex-direction: column;
}

#prod-img-preview {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: none;
    z-index: 1;
}

#img-placeholder-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

#btn-remove-img {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 2;
    display: none;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
}

/* Toast Notification */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background-color: var(--surface-color);
    border-left: 5px solid var(--primary-color);
    padding: 15px 20px;
    border-radius: 4px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    min-width: 300px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideIn 0.3s;
    border: 1px solid var(--border-color);
}

.toast.warning { border-color: var(--warning-color); border-left-color: var(--warning-color); }
.toast.danger { border-color: var(--danger-color); border-left-color: var(--danger-color); }
.toast.success { border-color: var(--success-color); border-left-color: var(--success-color); }

.toast-message {
    color: var(--text-color);
    font-size: 0.95rem;
}

.toast-close {
    cursor: pointer;
    margin-left: 10px;
    color: var(--text-muted);
}

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

/* Reports Styling */
.reports-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.report-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.summary-card {
    background-color: var(--surface-color);
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.summary-card .icon {
    width: 50px;
    height: 50px;
    background-color: rgba(233, 30, 99, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.summary-card .info {
    display: flex;
    flex-direction: column;
}

.summary-card .info span {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.summary-card .info h3 {
    font-size: 1.5rem;
    color: var(--text-color);
}

.report-section {
    background-color: var(--surface-color);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.report-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.date-filters {
    display: flex;
    align-items: center;
    gap: 10px;
}

.date-input {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: 6px;
    font-family: inherit;
}

/* Ensure calendar icon in date input is visible in dark mode */
::-webkit-calendar-picker-indicator {
    filter: invert(1);
}

.bar-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.bar {
    width: 100%;
    background-color: var(--primary-color);
    border-radius: 4px 4px 0 0;
    transition: height 0.5s;
    min-height: 2px;
    position: relative;
}

.bar:hover::after {
    content: attr(data-value);
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface-color);
    padding: 2px 5px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.bar-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Orders View / External Platforms */
.orders-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    padding: 20px;
}

@media (max-width: 1200px) {
    .orders-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .orders-grid {
        grid-template-columns: 1fr;
    }
}

.platform-card {
    background-color: var(--surface-color);
    border-radius: 12px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.platform-card:hover {
    transform: translateY(-5px);
}

.platform-icon {
    font-size: 3rem;
    margin-bottom: 10px;
}

.platform-card h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.platform-total {
    text-align: center;
    margin-bottom: 20px;
}

.platform-total small {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.platform-total strong {
    font-size: 2rem;
    color: var(--text-color);
}

@media print {
    body * {
        visibility: hidden;
    }
    #receipt-print-area, #receipt-print-area * {
        visibility: visible;
    }
    #receipt-print-area {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        margin: 0;
        padding: 0;
    }
    @page {
        margin: 0;
        size: auto;
    }
}