* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100vh;
    background-color: black;
    color: white;
    font-family: Arial, sans-serif;
}
.header {
    width: 100%;
    padding: 15px;
    text-align: left;
    font-size: 24px;
    font-weight: bold;
    background-color: #111;
}
.chat-container {
    width: 100%;
    max-width: 800px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-grow: 1;
    justify-content: center;
}
.chat-title {
    font-size: 20px;
    margin-bottom: 15px;
}
.connected-title {
    display: none;
    font-size: 15px;
    margin-top: 15px;
}
.input-container {
    display: flex;
    width: 100%;
    position: relative;
}
.chat-input {
    width: 100%;
    padding: 15px;
    border: 1px solid #444;
    border-radius: 8px;
    background-color: #222;
    color: white;
    font-size: 16px;
    outline: none;
    padding-right: 50px;
}
.send-button, .spinner {
    position: absolute;
    right: 10px;
    transform: translateY(-50%);
}
.send-button {
    background-color: #333;
    border: none;
    color: white;
    top: 50%;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
}
.spinner {
    display: none;
    width: 24px;
    top: 25%;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
.large-spinner {
    display: none;
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-top: 5px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-top: 20px;
}
.video-container {
    display: none;
    width: 100px;
    height: 600px;
    background-color: black;
    margin-top: 20px;
}
.notification {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    display: none;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}