/* Simple Theme - Admin */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0d6efd;
    --primary-dark: #0a58ca;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-bg: #f8f9fa;
    --card-bg: #ffffff;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --sidebar-width: 250px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

.admin-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: #212529;
    color: #fff;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
}

.sidebar-header {
    padding: 20px;
    background: #1a1e21;
    text-align: center;
}

.sidebar-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0;
}

.sidebar-nav {
    padding: 20px 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.2s;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    color: #fff;
    background: var(--primary-color);
}

.nav-link i {
    width: 20px;
    text-align: center;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 30px;
}

.page-header {
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.page-subtitle {
    color: var(--text-secondary);
}

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

.stat-card {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.primary {
    background: rgba(13, 110, 253, 0.1);
    color: var(--primary-color);
}

.stat-icon.success {
    background: rgba(25, 135, 84, 0.1);
    color: var(--success-color);
}

.stat-icon.warning {
    background: rgba(255, 193, 7, 0.1);
    color: var(--warning-color);
}

.stat-icon.danger {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

.stat-label {
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Card */
.card {
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.card-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.02);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
}

.card-body {
    padding: 20px;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background: #f8f9fa;
    padding: 12px 15px;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
}

td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

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

.btn-success {
    background: var(--success-color);
    color: #fff;
    border-color: var(--success-color);
}

.btn-danger {
    background: var(--danger-color);
    color: #fff;
    border-color: var(--danger-color);
}

.btn-warning {
    background: var(--warning-color);
    color: #212529;
    border-color: var(--warning-color);
}

.btn-light {
    background: #f8f9fa;
    color: #212529;
    border-color: var(--border-color);
}

.btn-sm {
    padding: 4px 8px;
    font-size: 0.8rem;
}

/* Badges */
.badge {
    padding: 4px 8px;
    border-radius: 50rem;
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-success {
    background: rgba(25, 135, 84, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.badge-danger {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

.badge-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #856404;
    border: 1px solid var(--warning-color);
}

.badge-info {
    background: rgba(13, 202, 240, 0.1);
    color: #087990;
    border: 1px solid var(--info-color);
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 0.9rem;
    line-height: 1.5;
    color: #212529;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}

.form-control:focus {
    border-color: #86b7fe;
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

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

.modal.active {
    display: flex;
}

.modal-content {
    background: #fff;
    width: 90%;
    max-width: 500px;
    border-radius: 8px;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

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

.modal-body {
    padding: 1rem;
}

.modal-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    text-align: right;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}