body {
    font-family: Arial, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    background: #343a40;
    color: white;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.header h1 {
    margin: 0;
    font-size: 28px;
}

.layout {
    display: flex;
    gap: 20px;
    min-height: 400px;
}

.sidebar {
    width: 200px;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    border: 1px solid #dee2e6;
}

.sidebar h2 {
    margin-top: 0;
    color: #343a40;
}

.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar li {
    margin-bottom: 10px;
}

.sidebar a {
    color: #007bff;
    text-decoration: none;
    display: block;
    padding: 8px;
    border-radius: 3px;
    transition: 0.2s;
}

.sidebar a:hover,
.sidebar a.active {
    background: #007bff;
    color: white;
    font-weight: bold;
}

.content {
    flex: 1;
    background: white;
    padding: 20px;
    border-radius: 5px;
    border: 1px solid #dee2e6;
}

.footer {
    background: #343a40;
    color: white;
    padding: 20px;
    text-align: center;
    margin-top: 20px;
    border-radius: 5px;
}

.cards-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 20px;
}

.card {
    width: 250px;
    border: 2px solid #dee2e6;
    border-radius: 10px;
    padding: 15px;
    position: relative;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: 0.3s;
}

.card:hover {
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

.card-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 8px;
    color: #343a40;
}

.card-description {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
}

.card-label {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: bold;
    color: white;
}

.label-top { background-color: #ff4444; }
.label-hit { background-color: #44aa44; }
.label-popular { background-color: #4444ff; }

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    border: 1px solid #dee2e6;
    padding: 12px;
    text-align: left;
}

th {
    background: #007bff;
    color: white;
    font-weight: bold;
}

tr:nth-child(even) {
    background: #f8f9fa;
}

tr:hover {
    background: #e9ecef;
}