/* General Body Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f4f7f6;
    margin: 0;
    color: #333;
}

/* Main Wrapper */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 250px;
    background-color: #2c3e50;
    color: #ecf0f1;
    display: flex;
    flex-direction: column;
}
.sidebar-header {
    padding: 20px;
    text-align: center;
    font-size: 1.5em;
    font-weight: bold;
    border-bottom: 1px solid #34495e;
}
.sidebar-nav {
    list-style-type: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}
.sidebar-nav li a {
    display: block;
    padding: 15px 20px;
    color: #ecf0f1;
    text-decoration: none;
    transition: background-color 0.3s;
    border-left: 3px solid transparent;
}
.sidebar-nav li a:hover, .sidebar-nav li.active a {
    background-color: #34495e;
    border-left: 3px solid #3498db;
}
.logout-link { margin-top: auto; }

/* Main Content Area */
.main-content {
    flex-grow: 1;
    padding: 30px;
    overflow-y: auto;
}
.content-header {
    margin-bottom: 25px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 15px;
}
.content-header h1 {
    margin: 0;
    font-size: 2em;
    color: #2c3e50;
}

/* Dashboard Cards */
.card-container {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}
.card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 25px;
    flex: 1;
    min-width: 220px;
    text-align: center;
}
.card h3 {
    margin-top: 0;
    font-size: 1.2em;
    color: #555;
}
.card .stat-number {
    font-size: 2.5em;
    font-weight: bold;
    color: #3498db;
}

/* Tables */
.content-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.content-table th, .content-table td {
    border: 1px solid #ddd;
    padding: 12px 15px;
    text-align: left;
}
.content-table th {
    background-color: #ecf0f1;
    color: #2c3e50;
    font-weight: bold;
}
.content-table tbody tr:nth-child(even) { background-color: #f9f9f9; }
.content-table tbody tr:hover { background-color: #f1f1f1; }
.content-table img.thumbnail { width: 80px; height: auto; border-radius: 4px; }
.action-links a { color: #3498db; text-decoration: none; margin-right: 10px; }
.action-links a.delete { color: #e74c3c; }

/* Forms */
.form-container {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}
.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="datetime-local"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
.form-group textarea { min-height: 100px; }

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
    text-decoration: none;
    display: inline-block;
    color: #fff;
}
.btn-primary { background-color: #3498db; }
.btn-primary:hover { background-color: #2980b9; }
.btn-danger { background-color: #e74c3c; }
.btn-danger:hover { background-color: #c0392b; }
.btn-secondary { background-color: #95a5a6; color: #fff; }
.btn-secondary:hover { background-color: #7f8c8d; }

/* Login Page */
.login-container {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #2c3e50;
}
.login-box {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 400px;
    text-align: center;
}
.login-box h1 { margin-bottom: 25px; color: #333; }
.login-box .error-message {
    color: #e74c3c;
    background: #fdd;
    border: 1px solid #e74c3c;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}

/* Pagination */
.pagination {
    margin-top: 20px;
}
.pagination a, .pagination span {
    color: #3498db;
    padding: 8px 16px;
    text-decoration: none;
    border: 1px solid #ddd;
    margin: 0 4px;
}
.pagination a:hover {
    background-color: #f1f1f1;
}
.pagination .current {
    background-color: #3498db;
    color: white;
    border: 1px solid #3498db;
}
.pagination .disabled {
    color: #ccc;
    border-color: #ddd;
}