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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* Login Container */
.login-container {
    max-width: 400px;
    margin: 100px auto;
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.login-container input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.login-container button {
    width: 100%;
    padding: 12px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

/* Dashboard */
.dashboard {
    max-width: 1200px;
    margin: 20px auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

/* Buttons */
.btn-primary {
    background: #007bff;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    margin: 10px;
}

.btn-secondary {
    background: #6c757d;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    margin: 10px;
}

.btn-admin {
    background: #28a745;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    margin: 10px;
    font-size: 16px;
}

/* Header */
header {
    background: #343a40;
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Game Elements */
.category-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.category-card {
    background: white;
    border: 2px solid #007bff;
    padding: 20px;
    border-radius: 10px;
    text-decoration: none;
    color: #333;
    transition: transform 0.3s;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Responsive */
@media (max-width: 768px) {
    .game-container {
        flex-direction: column;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
}