body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    background-color: #f0f2f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header {
    background-color: #28a745;
    color: white;
    padding: 20px;
    width: 100%;
    text-align: center;
}

main {
    flex: 1 0 auto;
    width: 100%;
    max-width: 900px;
    padding: 20px;
}

.container {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

h1, h2 {
    margin: 0 0 20px 0;
}

form {
    display: flex;
    flex-direction: column;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"] {
    padding: 10px;
    margin-bottom: 15px;
    font-size: 1em;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    padding: 12px;
    font-size: 1em;
    background-color: #28a745;
    border: none;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #218838;
}

.error-message {
    color: #dc3545;
    font-size: 0.85em;
    margin-top: -10px;
    margin-bottom: 15px;
}

ul#playerList {
    list-style-type: none;
    padding: 0;
    margin-bottom: 15px;
}

ul#playerList li {
    background-color: #e9ecef;
    padding: 8px;
    margin-bottom: 5px;
    border-radius: 4px;
}

footer {
    background-color: #242424;
    color: #ccc;
    text-align: center;
    padding: 15px;
    width: 100%;
    flex-shrink: 0;
}