body {
    margin: 0;
    background: #050509;
    color: #eee;
    font-family: Arial, sans-serif;
}

.chat-container {
    max-width: 600px;
    margin: 40px auto;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #ff2a2a;
    text-shadow: 0 0 12px #ff000066;
}

.chat-box {
    height: 400px;
    overflow-y: auto;
    background: #0a0a0f;
    border: 1px solid #2a0000;
    border-radius: 12px;
    padding: 15px;
}

.msg {
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 8px;
}

.msg.user {
    background: #1a1a22;
    text-align: right;
}

.msg.rai {
    background: #2a0000;
}

.input-area {
    display: flex;
    margin-top: 15px;
}

input {
    flex: 1;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #333;
    background: #000;
    color: #fff;
}

button {
    margin-left: 10px;
    padding: 10px 16px;
    background: #ff2a2a;
    border: none;
    border-radius: 8px;
    color: #fff;
    cursor: pointer;
}
button:hover {
    background: #ff4444;
}