body {
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    height: 100vh;
    margin: 0;
}

header {
    background: #333;
    color: white;
    padding: 1rem;
    text-align: center;
}

#main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

#chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px;
}

#chat {
    flex: 1;
    border: 1px solid #ddd;
    overflow-y: auto;
    padding: 10px;
    background: #fff;
    margin-bottom: 10px;
}

#sidebar {
    width: 200px;
    background: #eee;
    border-left: 1px solid #ddd;
    padding: 20px;
}

#user-list {
    list-style: none;
    padding: 0;
}

#user-list li {
    padding: 5px 0;
    border-bottom: 1px solid #ccc;
    font-weight: bold;
    color: #555;
}

.system {
    color: #999;
    font-style: italic;
    margin: 5px 0;
}

#controls {
    display: flex;
    gap: 10px;
}

input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
}

button {
    padding: 10px 20px;
    background: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

.time {
    font-size: 0.8em;
    color: #999;
    margin-right: 5px;
    font-family: monospace;
}

#name-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.name-box {
    text-align: center;
    padding: 30px;
    border: 1px solid #ddd;
    border-radius: 10px;
    background: white;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

#name-input {
    padding: 10px;
    font-size: 1rem;
    width: 200px;
    margin-bottom: 15px;
}