:root {
    /* Açık tema (Light Theme) değişkenleri */
    --primary-color: #4a90e2;
    --secondary-color: #5c6ac4;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f1c40f;
    --info-color: #3498db;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --border-color: #dfe6e9;
    --bg-color: #f5f6fa;
    --card-bg: #ffffff;
    --header-bg: #ffffff;
    --sidebar-bg: #ffffff;
    --sidebar-width: 250px;
    --header-height: 60px;
}

/* Karanlık tema (Dark Theme) için CSS değişkenleri */
[data-bs-theme="dark"] {
    --primary-color: #3d85c6;
    --secondary-color: #5c6ac4;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f1c40f;
    --info-color: #3498db;
    --text-color: #e0e0e0;
    --text-light: #b0b0b0;
    --border-color: #383838;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --header-bg: #1e1e1e;
    --sidebar-bg: #1e1e1e;
}

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

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

/* Admin Container */
.admin-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.sidebar-nav ul {
    list-style: none;
    padding: 1rem 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
    gap: 0.75rem;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(74, 144, 226, 0.1);
    color: var(--primary-color);
}

[data-bs-theme="dark"] .sidebar-nav a:hover,
[data-bs-theme="dark"] .sidebar-nav a.active {
    background: rgba(61, 133, 198, 0.2);
}

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

/* Dropdown menüler */
.nav-dropdown > a {
    position: relative;
}

.nav-dropdown > a:after {
    content: '\f107';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    margin-left: auto;
}

.nav-dropdown-items {
    padding-left: 1rem !important;
    height: 0;
    overflow: hidden;
    transition: height 0.3s ease;
}

.nav-dropdown.active .nav-dropdown-items {
    height: auto;
}

.nav-dropdown.active > a:after {
    transform: rotate(180deg);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

/* Header */
.admin-header {
    height: var(--header-height);
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-left h1 {
    font-size: 1.5rem;
    color: var(--text-color);
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-color);
    cursor: pointer;
}

/* Admin User */
.admin-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.admin-user span {
    font-weight: 500;
    color: var(--text-color);
}

.logout-btn {
    color: var(--text-color);
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.logout-btn:hover {
    opacity: 1;
}

/* Dashboard Stats */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(74, 144, 226, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
}

[data-bs-theme="dark"] .stat-icon {
    background: rgba(61, 133, 198, 0.2);
}

.stat-info h3 {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.stat-info p {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem;
}

.dashboard-card,
.card {
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h2,
.card-header h3 {
    font-size: 1.125rem;
    color: var(--text-color);
}

.card-body {
    padding: 1.5rem;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    color: var(--text-color);
}

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--text-light);
    font-size: 0.875rem;
}

/* DataTables özelleştirmeleri */
.dataTables_wrapper .dataTables_length, 
.dataTables_wrapper .dataTables_filter, 
.dataTables_wrapper .dataTables_info, 
.dataTables_wrapper .dataTables_processing, 
.dataTables_wrapper .dataTables_paginate {
    color: var(--text-color) !important;
}

.dataTables_wrapper .dataTables_length select, 
.dataTables_wrapper .dataTables_filter input {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

/* Status Badges */
.status-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-badge.completed,
.status-badge.success {
    background: rgba(46, 204, 113, 0.1);
    color: var(--success-color);
}

.status-badge.pending,
.status-badge.warning {
    background: rgba(241, 196, 15, 0.1);
    color: var(--warning-color);
}

.status-badge.failed,
.status-badge.danger,
.status-badge.error {
    background: rgba(231, 76, 60, 0.1);
    color: var(--danger-color);
}

.status-badge.active {
    background: rgba(46, 204, 113, 0.1);
    color: var(--success-color);
}

.status-badge.inactive {
    background: rgba(231, 76, 60, 0.1);
    color: var(--danger-color);
}

.status-badge.info {
    background: rgba(52, 152, 219, 0.1);
    color: var(--info-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
}

.btn-primary:hover {
    background: rgba(74, 144, 226, 0.9);
}

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

.btn-success {
    background: var(--success-color);
    color: white;
    border: 1px solid var(--success-color);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
    border: 1px solid var(--danger-color);
}

.btn-warning {
    background: var(--warning-color);
    color: white;
    border: 1px solid var(--warning-color);
}

.btn-info {
    background: var(--info-color);
    color: white;
    border: 1px solid var(--info-color);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

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

.btn-outline-secondary {
    background: transparent;
    color: var(--secondary-color);
    border: 1px solid var(--secondary-color);
}

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

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

.alert-success {
    background-color: rgba(46, 204, 113, 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.alert-error,
.alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.alert-warning {
    background-color: rgba(241, 196, 15, 0.1);
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.alert-info {
    background-color: rgba(52, 152, 219, 0.1);
    border-color: var(--info-color);
    color: var(--info-color);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar-toggle {
        display: block;
    }
    
    .admin-sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .admin-sidebar.active,
    .admin-sidebar.visible {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
}

.form-control,
.form-select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    background-color: var(--bg-color);
    color: var(--text-color);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.1);
    outline: none;
}

.form-text {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

/* Form check (checkbox, radio) */
.form-check-input {
    margin-top: 0.3rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Content Header */
.content-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Search Form */
.search-form {
    display: flex;
    gap: 0.5rem;
}

.search-input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.page-link {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    text-decoration: none;
    background-color: var(--bg-color);
    transition: all 0.3s ease;
}

.page-link:hover {
    background-color: rgba(74, 144, 226, 0.1);
}

.page-link.active,
.active > .page-link {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Form Actions */
.form-actions {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Admin giriş sayfası stilleri */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.auth-container {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
}

.auth-box {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-light);
    font-size: 0.875rem;
}

.auth-form {
    margin-bottom: 1.5rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
    gap: 0.5rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.back-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.back-link:hover {
    color: var(--primary-color);
}

/* Dropdown menüler */
.dropdown-menu {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
}

.dropdown-item {
    color: var(--text-color);
}

.dropdown-item:hover {
    background-color: rgba(74, 144, 226, 0.1);
    color: var(--primary-color);
}

[data-bs-theme="dark"] .dropdown-item:hover {
    background-color: rgba(61, 133, 198, 0.2);
}

/* Modal stilleri */
.modal-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
}

/* Select2 entegrasyonu */
.select2-container--bootstrap-5 .select2-selection {
    background-color: var(--bg-color) !important;
    border-color: var(--border-color) !important;
    color: var(--text-color) !important;
}

.select2-dropdown {
    background-color: var(--card-bg) !important;
    border-color: var(--border-color) !important;
}

.select2-results__option {
    color: var(--text-color) !important;
}

/* Admin Main */
.admin-main {
    padding: 1rem;
    padding-bottom: 4rem;
}