/* Desktop-like Application Styles */
:root {
    --sidebar-width: 260px;
    --top-navbar-height: 60px;
    --primary-color: #0d6efd;
    --sidebar-bg: #2c3e50;
    --sidebar-hover: #34495e;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f5f7fa;
    overflow-x: hidden;
}

/* Login Page Styles */
.login-container {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.login-container .card {
    border: none;
    border-radius: 15px;
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--sidebar-bg);
    color: white;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
}

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

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu li {
    margin: 0;
}

.menu-section {
    padding: 15px 20px 10px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 600;
}

.menu-item {
    display: block;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.menu-item:hover {
    background-color: var(--sidebar-hover);
    color: white;
    border-left-color: var(--primary-color);
}

.menu-item.active {
    background-color: var(--sidebar-hover);
    color: white;
    border-left-color: var(--primary-color);
}

.menu-item i {
    width: 20px;
    margin-right: 10px;
}

/* Main Content Area */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

.main-content.sidebar-collapsed {
    margin-left: 0;
}

.top-navbar {
    height: var(--top-navbar-height);
    background-color: white;
    border-bottom: 1px solid #e0e0e0;
    padding: 0 20px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.content-wrapper {
    padding: 20px;
}

/* Page Header */
.page-header {
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
}

.page-header .breadcrumb {
    background: none;
    padding: 0;
    margin: 0;
}

/* Cards */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
    padding: 15px 20px;
    font-weight: 600;
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table thead th {
    background-color: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
    color: #6c757d;
}

/* Buttons */
.btn {
    border-radius: 6px;
    padding: 8px 16px;
    font-weight: 500;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 14px;
}

/* Forms */
.form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 8px;
}

.form-control {
    border-radius: 6px;
    border: 1px solid #ced4da;
    padding: 10px 12px;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
}

.stats-card h3 {
    font-size: 32px;
    font-weight: 700;
    margin: 0;
}

.stats-card p {
    margin: 5px 0 0;
    opacity: 0.9;
    font-size: 14px;
}

.stats-card.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stats-card.success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.stats-card.warning {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.stats-card.info {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .main-content.sidebar-collapsed {
        margin-left: 0;
    }
}

/* Loading Spinner */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* Alert Styles */
.alert {
    border-radius: 8px;
    border: none;
}

/* Modal Styles */
.modal-content {
    border-radius: 10px;
    border: none;
}

.modal-header {
    border-bottom: 1px solid #e0e0e0;
    padding: 20px;
}

.modal-footer {
    border-top: 1px solid #e0e0e0;
    padding: 20px;
}

/* Badge Styles */
.badge {
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 500;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #6c757d;
}

.empty-state i {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.3;
}