/* ============================================
   SKP Service Accounting System
   Professional UI Design System
   ============================================ */

/* CSS Variables - Color Scheme */
:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --primary-light: #e0e7ff;
    --secondary: #6c757d;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --light: #f8f9fa;
    --dark: #343a40;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    --sidebar-width: 250px;
    --header-height: 60px;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-100);
}

a {
    text-decoration: none;
    color: var(--primary);
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* ============================================
   Login Page Styles
   ============================================ */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, #6c5ce7 100%);
    padding: 20px;
}

.login-box {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2 {
    color: var(--gray-800);
    font-size: 24px;
    margin-bottom: 5px;
}

.login-header p {
    color: var(--gray-600);
    font-size: 14px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 5px;
    color: var(--gray-700);
    font-weight: 500;
}

.login-form input[type="text"],
.login-form input[type="password"] {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-login:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.4);
}

/* ============================================
   Dashboard Layout
   ============================================ */
.dashboard {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--dark);
    color: var(--white);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: var(--transition);
    z-index: 1000;
}

.sidebar-header {
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h3 {
    font-size: 18px;
    margin-bottom: 5px;
}

.sidebar-header p {
    font-size: 12px;
    color: var(--gray-400);
}

.sidebar-nav {
    padding: 10px 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--gray-400);
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-left-color: var(--primary);
}

.sidebar-nav a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.sidebar-nav .nav-section {
    padding: 15px 20px 5px;
    font-size: 11px;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 1px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 20px;
    background: var(--gray-100);
}

/* Top Header */
.top-header {
    background: var(--white);
    padding: 15px 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-header h2 {
    font-size: 20px;
    color: var(--gray-800);
}

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

.user-info .user-name {
    font-weight: 600;
    color: var(--gray-700);
}

.user-info .role-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.role-badge.super_admin {
    background: #e3f2fd;
    color: #1565c0;
}

.role-badge.admin {
    background: #f3e5f5;
    color: #7b1fa2;
}

.role-badge.user {
    background: #e8f5e9;
    color: #2e7d32;
}

.role-badge.customer {
    background: #fff3e0;
    color: #e65100;
}

/* ============================================
   Content Area
   ============================================ */
.content {
    background: var(--white);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
}

.content h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--gray-800);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--gray-200);
}

.content h4 {
    font-size: 16px;
    margin: 20px 0 15px;
    color: var(--gray-700);
}

/* ============================================
   Stats Cards
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

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

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

.stat-card.danger {
    border-left-color: var(--danger);
}

.stat-card.info {
    border-left-color: var(--info);
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-800);
    margin: 10px 0 5px;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card .stat-icon {
    float: right;
    font-size: 40px;
    opacity: 0.3;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23343a40' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
    padding-right: 35px;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(67, 97, 238, 0.3);
}

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

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

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

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

.btn-warning {
    background: var(--warning);
    color: var(--gray-800);
}

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-lg {
    padding: 12px 30px;
    font-size: 16px;
}

.btn-group {
    display: flex;
    gap: 10px;
}

/* ============================================
   Tables
   ============================================ */
.table-responsive {
    overflow-x: auto;
    margin: 20px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
}

table thead {
    background: var(--gray-100);
}

table th {
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-300);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-700);
}

table tbody tr:hover {
    background: var(--gray-100);
}

table tbody tr:last-child td {
    border-bottom: none;
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

/* ============================================
   Messages (Success/Error)
   ============================================ */
.message {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    font-weight: 500;
}

.message-success {
    background: #d4edda;
    color: #155724;
    border-left: 4px solid var(--success);
}

.message-error {
    background: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger);
}

.message-warning {
    background: #fff3cd;
    color: #856404;
    border-left: 4px solid var(--warning);
}

.message-info {
    background: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid var(--info);
}

/* ============================================
   POS System Styles
   ============================================ */
.pos-container {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 20px;
    height: calc(100vh - 100px);
}

.pos-left {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 20px;
    overflow-y: auto;
}

.pos-right {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.customer-search {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--gray-200);
}

.customer-info {
    background: var(--gray-100);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.customer-info h4 {
    margin: 0 0 10px 0;
    color: var(--primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.service-item {
    background: var(--gray-100);
    padding: 15px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

.service-item:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.service-item .service-name {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 5px;
}

.service-item .service-price {
    color: var(--primary);
    font-size: 18px;
    font-weight: 700;
}

.bill-preview {
    flex: 1;
    overflow-y: auto;
    margin-bottom: 20px;
}

.bill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: var(--gray-100);
    border-radius: 5px;
    margin-bottom: 10px;
}

.bill-item .item-details {
    flex: 1;
}

.bill-item .item-name {
    font-weight: 600;
    color: var(--gray-800);
}

.bill-item .item-price {
    color: var(--primary);
    font-weight: 600;
}

.bill-item .remove-item {
    background: var(--danger);
    color: var(--white);
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

.bill-total {
    border-top: 2px solid var(--gray-300);
    padding-top: 15px;
    margin-top: 15px;
}

.bill-total-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 16px;
}

.bill-total-row.final {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

/* ============================================
   Cards & Grid Layouts
   ============================================ */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.card-header {
    padding: 15px 20px;
    background: var(--gray-100);
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/* ============================================
   Membership Cards
   ============================================ */
.membership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.membership-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 20px;
    border-top: 4px solid var(--primary);
    transition: var(--transition);
}

.membership-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.membership-card h4 {
    margin: 0 0 10px 0;
    color: var(--gray-800);
}

.membership-card .price {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin: 10px 0;
}

.membership-card .duration {
    color: var(--gray-600);
    margin-bottom: 15px;
}

.membership-card ul {
    list-style: none;
    margin: 15px 0;
}

.membership-card ul li {
    padding: 5px 0;
    color: var(--gray-700);
}

.membership-card ul li:before {
    content: "✓ ";
    color: var(--success);
    font-weight: bold;
}

/* ============================================
   Tab Menu
   ============================================ */
.tab-header {
    display: flex;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 20px;
    gap: 0;
}

.tab-item {
    padding: 12px 24px;
    cursor: pointer;
    font-weight: 500;
    color: var(--gray-600);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    user-select: none;
}

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

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

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-box {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    animation: fadeIn 0.2s ease;
}

.modal-box-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-100);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-box-header h3 {
    font-size: 16px;
    margin: 0;
    padding: 0;
    border: none;
    color: var(--gray-800);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-500);
    padding: 0 4px;
    line-height: 1;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--danger);
}

.modal-box-body {
    padding: 24px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-100);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 500;
    color: var(--gray-600);
}

.detail-value {
    font-weight: 600;
    color: var(--gray-800);
}

.detail-table {
    margin-top: 16px;
}

.detail-table h4 {
    font-size: 14px;
    margin: 0 0 10px 0;
    color: var(--gray-700);
}

.detail-table table {
    font-size: 13px;
}

.detail-table table th {
    font-size: 11px;
}

/* ============================================
    Actions & Utilities
    ============================================ */
.actions {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

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

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

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.p-20 {
    padding: 20px;
}

/* Search Box */
.search-box {
    position: relative;
    margin-bottom: 20px;
}

.search-box input {
    width: 100%;
    padding: 12px 40px 12px 15px;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 14px;
}

.search-box .search-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.empty-state i {
    font-size: 60px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 16px;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .pos-container {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Print Styles (for POS receipt)
   ============================================ */
@media print {
    .sidebar,
    .top-header,
    .btn,
    .actions {
        display: none !important;
    }
    
    .main-content {
        margin: 0;
        padding: 0;
    }
    
    .pos-container {
        display: block;
    }
    
    .pos-left {
        display: none;
    }
    
    .pos-right {
        box-shadow: none;
    }
}

/* ============================================
   Scrollbar Styling
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-200);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

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

.fade-in {
    animation: fadeIn 0.3s ease;
}