/* Base Styles */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-bg: #ecf0f1;
    --dark-text: #2c3e50;
    --border-color: #bdc3c7;
}
/* POS System Styles */
.pos-container {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.pos-items-section {
    flex: 2;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    max-height: 80vh;
    overflow-y: auto;
}

.pos-cart {
    flex: 1;
    background: #fff;
    padding: 15px;
    border-radius: 5px;
    border: 1px solid #dee2e6;
    max-height: 80vh;
    overflow-y: auto;
}

.pos-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
    margin-bottom: 20px;
}

.pos-item {
    cursor: pointer;
    padding: 10px;
    margin: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: all 0.3s ease;
    background: white;
}

.pos-item:hover {
    background-color: #e9ecef;
    transform: translateY(-2px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.pos-item strong {
    color: #333;
    font-size: 14px;
}

.pos-item p {
    margin: 5px 0;
    color: #666;
    font-size: 12px;
}

/* Modal animations */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -48%) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.add-to-cart-modal {
    animation: modalFadeIn 0.2s ease-out;
}

/* Form controls */
.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

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

.btn-success {
    background-color: #28a745;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.btn-success:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
}

.btn-danger {
    background-color: #dc3545;
    color: white;
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

/* Alert styles */
.alert {
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 15px;
}

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

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

/* Table styles */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 15px;
}

.table th, .table td {
    padding: 8px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

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

.text-muted {
    color: #6c757d;
    font-size: 12px;
}
/* Responsive Table */
@media (max-width: 768px) {
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .table {
        min-width: 600px;
    }
    
    .action-buttons {
        flex-wrap: wrap;
    }
    
    .action-buttons .btn {
        margin-bottom: 5px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .pos-container {
        grid-template-columns: 1fr;
    }
    
    .filter-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        background: var(--secondary-color);
        position: absolute;
        top: 100%;
        left: 0;
        z-index: 1000;
        padding: 10px 0;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        width: 100%;
    }
    
    .nav-links a {
        display: block;
        padding: 12px 20px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .user-info {
        border-top: 2px solid rgba(255,255,255,0.2);
        margin-top: 10px;
        padding-top: 10px;
    }
}

/* Print Styles */
@media print {
    .no-print,
    .mobile-menu-toggle,
    .invoice-actions,
    .filter-section,
    .export-options {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        background: white;
    }
    
    .container {
        width: 100%;
        max-width: none;
        padding: 0;
        margin: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
        page-break-inside: avoid;
    }
    
    .table {
        font-size: 10pt;
    }
    
    .table th,
    .table td {
        padding: 6px 8px;
    }
}

/* Loading States */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 15px 20px;
    background: var(--success-color);
    color: white;
    border-radius: 5px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 10000;
    animation: slideIn 0.3s ease;
}

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

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

.toast.info {
    background: var(--primary-color);
}

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

/* Tooltips */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 200px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.9rem;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --light-bg: #1a1a1a;
        --dark-text: #ffffff;
    }
    
    body {
        background-color: #121212;
        color: #ffffff;
    }
    
    .card {
        background-color: #1e1e1e;
        color: #ffffff;
    }
    
    .table {
        background-color: #1e1e1e;
        color: #ffffff;
    }
    
    .table th {
        background-color: #2d2d2d;
    }
    
    .table td {
        border-color: #3d3d3d;
    }
    
    .form-control {
        background-color: #2d2d2d;
        color: #ffffff;
        border-color: #3d3d3d;
    }
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: #f5f7fa;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header & Navigation */
header {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links {
    display: flex;
    gap: 20px;
    list-style: none;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: rgba(255,255,255,0.2);
}

/* Main Content */
main {
    min-height: calc(100vh - 140px);
    padding: 2rem 0;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 2rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

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

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

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

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

/* Tables */
.table-container {
    overflow-x: auto;
    margin-top: 1rem;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.table th {
    background-color: var(--secondary-color);
    color: white;
    padding: 12px 15px;
    text-align: left;
}

.table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    background-color: #2980b9;
}

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

.btn-success:hover {
    background-color: #219653;
}

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

.btn-danger:hover {
    background-color: #c0392b;
}

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

.btn-warning:hover {
    background-color: #e67e22;
}

/* POS System */
.pos-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

.pos-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

.pos-item {
    background: white;
    padding: 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.pos-item:hover {
    border-color: var(--primary-color);
    transform: scale(1.02);
}

.pos-cart {
    background: white;
    padding: 20px;
    border-radius: 8px;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

/* Alerts */
.alert {
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
}

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

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

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

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    .invoice-print {
        width: 100% !important;
        margin: 0 !important;
        padding: 20px !important;
        font-size: 12pt !important;
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        width: 100%;
        display: none;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .pos-container {
        grid-template-columns: 1fr;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .table {
        font-size: 14px;
    }
    
    .table th,
    .table td {
        padding: 8px 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .card {
        padding: 1rem;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 14px;
    }
}

/* Service Request Cards */
.service-card {
    background: white;
    border-left: 4px solid;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 4px;
}

.service-card.pending {
    border-left-color: var(--warning-color);
}

.service-card.in_progress {
    border-left-color: var(--primary-color);
}

.service-card.completed {
    border-left-color: var(--success-color);
}

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stat-card h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin: 10px 0;
}

.stat-card p {
    color: var(--dark-text);
    font-weight: 600;
}