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

:root {
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #764ba2;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --light: #f8f9fa;
    --dark: #343a40;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --white: #ffffff;
    --sidebar-width: 250px;
    --header-height: 70px;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fb;
    overflow-x: hidden;
}

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

/* Sidebar Styles */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: var(--transition);
    z-index: 1000;
}

.sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
}

.sidebar-header h2 {
    font-size: 22px;
    font-weight: 700;
    margin-left: 10px;
}

.sidebar-logo {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-nav {
    list-style: none;
    padding: 20px 0;
}

.sidebar-nav li {
    margin-bottom: 5px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-left: 4px solid var(--white);
}

.sidebar-nav i {
    margin-right: 12px;
    font-size: 18px;
    width: 24px;
    text-align: center;
}

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

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

.header-title h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
}

.header-title p {
    color: var(--gray);
    font-size: 14px;
    margin-top: 5px;
}

.user-menu {
    display: flex;
    align-items: center;
}

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

.user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    margin-right: 10px;
}

.user-details {
    line-height: 1.4;
}

.user-details .name {
    font-weight: 600;
    color: var(--dark);
}

.user-details .role {
    font-size: 12px;
    color: var(--gray);
}

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

.section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--dark);
    padding-bottom: 10px;
    border-bottom: 1px solid var(--light-gray);
}

/* Stats Grid */
.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);
    text-align: center;
    transition: var(--transition);
    border-left: 4px solid var(--primary);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.stat-card h3 {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 10px;
    font-weight: 500;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
    display: block;
    margin: 10px 0;
}

.stat-label {
    font-size: 12px;
    color: var(--gray);
}

.stat-card:nth-child(1) {
    border-left-color: var(--primary);
}

.stat-card:nth-child(2) {
    border-left-color: var(--info);
}

.stat-card:nth-child(3) {
    border-left-color: var(--success);
}

.stat-card:nth-child(4) {
    border-left-color: var(--warning);
}

.stat-card:nth-child(5) {
    border-left-color: var(--secondary);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 25px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

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

.data-table th {
    background-color: var(--light);
    font-weight: 600;
    color: var(--dark);
}

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

/* Status Badges */
.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}

.status-pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-approved {
    background-color: #d4edda;
    color: #155724;
}

.status-blocked {
    background-color: #f8d7da;
    color: #721c24;
}

.status-paid {
    background-color: #d4edda;
    color: #155724;
}

.status-unpaid {
    background-color: #fff3cd;
    color: #856404;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #6a4890 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background-color: var(--light);
    color: var(--dark);
    border: 1px solid var(--light-gray);
}

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

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

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

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

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

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

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

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

.btn-info:hover {
    background-color: #138496;
}

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

/* Forms */
.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

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

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

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
    background-color: var(--light);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-actions {
    margin-top: 25px;
    text-align: right;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
}

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

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

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

.alert-icon {
    margin-right: 10px;
    font-size: 16px;
}

/* Code Snippets */
.code-snippet {
    margin-bottom: 20px;
    background-color: var(--light);
    border-radius: var(--border-radius);
    padding: 15px;
    border-left: 4px solid var(--primary);
}

.code-snippet label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.code-snippet textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    background-color: #f8f9fa;
    font-family: 'Courier New', monospace;
    resize: none;
    height: 80px;
    font-size: 13px;
}

.code-snippet small {
    color: var(--gray);
    font-size: 12px;
    margin-top: 5px;
    display: block;
}

.code-snippet-sm {
    display: flex;
    align-items: center;
    background: var(--light);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    margin-bottom: 8px;
}

.code-snippet-sm code {
    flex: 1;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Action Buttons */
.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

/* Charts */
.chart-container {
    position: relative;
    height: 400px;
    margin: 20px 0;
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--box-shadow);
}

/* Responsive Design */
@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        width: 0;
    }
    
    .sidebar.active {
        transform: translateX(0);
        width: var(--sidebar-width);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        grid-template-columns: 1fr;
    }
    
    .header {
        flex-direction: column;
        text-align: center;
        padding: 15px;
    }
    
    .user-menu {
        margin-top: 15px;
        justify-content: center;
    }
}

/* Menu Toggle (Mobile) */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark);
    cursor: pointer;
    margin-right: 15px;
}

@media (max-width: 992px) {
    .menu-toggle {
        display: block;
    }
}

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Footer */
.dashboard-footer {
    text-align: center;
    padding: 20px;
    color: var(--gray);
    font-size: 14px;
    margin-top: 40px;
    border-top: 1px solid var(--light-gray);
}