:root {
    --primary-color: #7367F0;
    --primary-dark: #5D50E6;
    --secondary-color: #82868B;
    --success-color: #28C76F;
    --danger-color: #EA5455;
    --warning-color: #FF9F43;
    --info-color: #00CFE8;
    --dark-color: #4B4B4B;
    --light-color: #F8F8F8;
    --bg-dark: #283046;
    --bg-darker: #161D31;
    --text-color: #D0D2D6;
    --text-muted: #B4B7BD;
    --border-color: #3B4253;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-color);
    line-height: 1.6;
}

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

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Cards */
.card {
    background-color: var(--bg-darker);
    border-radius: 6px;
    box-shadow: 0 4px 24px 0 rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.card-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-body {
    padding: 20px;
}

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

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

.table th {
    font-weight: 600;
    color: var(--text-color);
    background-color: rgba(0, 0, 0, 0.1);
}

.table tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn i {
    margin-right: 8px;
}

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

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

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

.btn-secondary:hover {
    background-color: #6c757d;
}

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

.btn-success:hover {
    background-color: #1f9d57;
}

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

.btn-danger:hover {
    background-color: #d34546;
}

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

/* Forms */
.form-control {
    display: block;
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-color);
    background-color: var(--bg-dark);
    background-clip: padding-box;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    outline: 0;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(115, 103, 240, 0.25);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

/* Alerts */
.alert {
    position: relative;
    padding: 12px 20px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
}

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

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

/* Status badges */
.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.active {
    background-color: rgba(40, 199, 111, 0.12);
    color: var(--success-color);
}

.status-badge.inactive {
    background-color: rgba(234, 84, 85, 0.12);
    color: var(--danger-color);
}

.status-badge.pending {
    background-color: rgba(255, 159, 67, 0.12);
    color: var(--warning-color);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.page-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: var(--bg-darker);
    border-radius: 6px;
    padding: 20px;
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    background-color: rgba(115, 103, 240, 0.12);
    color: var(--primary-color);
    font-size: 20px;
}

.stat-info h3 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.stat-info p {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

/* Activity List */
.activity-list {
    border-radius: 6px;
    overflow: hidden;
}

.activity-item {
    display: flex;
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-user {
    width: 150px;
    font-weight: 500;
}

.activity-action {
    width: 120px;
    color: var(--text-muted);
    text-transform: capitalize;
}

.activity-description {
    flex: 1;
}

.activity-time {
    width: 120px;
    text-align: right;
    color: var(--text-muted);
    font-size: 12px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--bg-darker);
    border-radius: 6px;
    width: 100%;
    max-width: 600px;
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.modal-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

.modal-footer .btn {
    margin-left: 10px;
}

.close {
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
    color: var(--text-muted);
    opacity: 0.5;
    cursor: pointer;
    background: none;
    border: none;
}

.close:hover {
    opacity: 1;
}

/* Auth Pages */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--bg-darker);
}

.auth-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.auth-card {
    background-color: var(--bg-dark);
    border-radius: 6px;
    box-shadow: 0 4px 24px 0 rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.auth-header {
    padding: 30px 20px;
    text-align: center;
    background-color: rgba(115, 103, 240, 0.1);
    border-bottom: 1px solid var(--border-color);
}

.auth-header h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-color);
}

.auth-header p {
    color: var(--text-muted);
    font-size: 14px;
}

.auth-form {
    padding: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .page-header .btn {
        margin-top: 15px;
    }
    
    .activity-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .activity-user, .activity-action, .activity-time {
        width: 100%;
        margin-bottom: 5px;
    }
    
    .activity-time {
        text-align: left;
    }
}

/* Sidebar */
.sidebar {
    width: 250px;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background-color: var(--bg-darker);
    border-right: 1px solid var(--border-color);
    z-index: 1000;
    overflow-y: auto;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.sidebar-header h2 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--text-color);
}

.sidebar-header p {
    font-size: 14px;
    color: var(--text-muted);
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-muted);
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar-nav li a:hover {
    color: var(--text-color);
    background-color: rgba(115, 103, 240, 0.1);
    border-left-color: var(--primary-color);
}

.sidebar-nav li a.active {
    color: var(--text-color);
    background-color: rgba(115, 103, 240, 0.1);
    border-left-color: var(--primary-color);
}

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

/* Main Content */
.main-content {
    margin-left: 250px;
    min-height: 100vh;
    background-color: var(--bg-dark);
}