/* POS Coffee Shop - Modern & Lively Design */

:root {
    --primary: #6B4CE6;
    --primary-dark: #5538CC;
    --secondary: #FF6B6B;
    --success: #51CF66;
    --warning: #FFD93D;
    --danger: #FF6B6B;
    --info: #4DABF7;
    --dark: #2D3436;
    --light: #F8F9FA;
    --gray: #ADB5BD;
    --white: #FFFFFF;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background: var(--white);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--primary);
}

.navbar-brand h2 {
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-menu {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.nav-link {
    color: var(--dark);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s;
    font-weight: 500;
}

.nav-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-box {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    color: var(--primary);
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--gray);
}

.login-form {
    margin-top: 2rem;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.card-header {
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

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

.stat-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
}

.stat-icon {
    font-size: 3rem;
    line-height: 1;
}

.stat-primary { border-left: 4px solid var(--primary); }
.stat-success { border-left: 4px solid var(--success); }
.stat-info { border-left: 4px solid var(--info); }
.stat-warning { border-left: 4px solid var(--warning); }

.stat-content h3 {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    font-size: 0.875rem;
}

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

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

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

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

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

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

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

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

.btn-xs {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
}

.form-control,
input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus,
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-inline {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

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

.table thead {
    background: var(--light);
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.table tbody tr:hover {
    background: var(--light);
}

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

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

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

/* Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

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

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

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

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

.badge-info {
    background: var(--info);
    color: var(--white);
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.alert-error {
    background: #ffebee;
    color: #c62828;
    border-left: 4px solid var(--danger);
}

.alert-success {
    background: #e8f5e9;
    color: #2e7d32;
    border-left: 4px solid var(--success);
}

.alert .close {
    cursor: pointer;
    font-size: 1.5rem;
    font-weight: bold;
    opacity: 0.5;
}

.alert .close:hover {
    opacity: 1;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    color: var(--white);
    font-size: 2rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.page-header p {
    color: rgba(255,255,255,0.9);
}

/* POS Interface */
.pos-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.pos-left {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pos-right {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Category Tabs */
.category-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.category-tab {
    padding: 0.75rem 1.5rem;
    background: var(--light);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.category-tab:hover,
.category-tab.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    max-height: 600px;
    overflow-y: auto;
}

.product-item {
    background: var(--light);
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.product-item:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.product-info h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.product-code {
    font-size: 0.75rem;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.product-price {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

/* Cart */
.quantity-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
}

.quantity {
    min-width: 30px;
    text-align: center;
    font-weight: 600;
}

.cart-summary {
    margin-top: 1rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.summary-row.total {
    border-top: 2px solid var(--dark);
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    font-size: 1.125rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s;
}

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

.modal-content {
    background: var(--white);
    margin: 5% auto;
    padding: 0;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
    animation: slideDown 0.3s;
}

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

.modal-header {
    padding: 1.5rem;
    background: var(--primary);
    color: var(--white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 12px 12px 0 0;
}

.modal-header h2 {
    font-size: 1.5rem;
}

.modal-header .close {
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.modal-header .close:hover {
    opacity: 1;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    background: var(--light);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    border-radius: 0 0 12px 12px;
}

/* Receipt */
.receipt-container {
    max-width: 400px;
    margin: 0 auto;
}

.receipt {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.receipt-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.receipt-header h1 {
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.receipt-header p {
    font-size: 0.875rem;
    color: var(--gray);
    margin: 0.25rem 0;
}

.receipt-info p {
    margin: 0.5rem 0;
    font-size: 0.875rem;
}

.receipt-items {
    width: 100%;
    margin: 1.5rem 0;
}

.receipt-items th,
.receipt-items td {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e0e0e0;
}

.receipt-items .total-row {
    border-top: 2px solid var(--dark);
    border-bottom: none;
    font-size: 1.125rem;
}

.receipt-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px dashed #e0e0e0;
}

.receipt-footer p {
    margin: 0.5rem 0;
    font-size: 0.875rem;
}

.receipt-actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.quick-action-btn {
    background: var(--light);
    padding: 2rem 1rem;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    color: var(--dark);
    transition: all 0.3s;
    border: 2px solid transparent;
}

.quick-action-btn:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-4px);
}

.quick-action-btn .icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.5rem;
}

.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

/* Footer */
.footer {
    background: var(--white);
    padding: 1.5rem;
    text-align: center;
    margin-top: 3rem;
    border-top: 2px solid var(--light);
    color: var(--gray);
}

/* Print Styles */
@media print {
    .navbar,
    .receipt-actions,
    .page-header,
    .card-header,
    button,
    .btn {
        display: none !important;
    }
    
    .receipt {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    body {
        background: white;
    }
}

.receipt-print {
    max-width: 300px;
    margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .navbar-menu {
        flex-direction: column;
        width: 100%;
    }
    
    .pos-container,
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gray);
    border-radius: 5px;
}

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

.mt-1 {
    margin-top: 0.5rem;
}