body, html {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    height: 100%;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    padding: 10px;
    text-align: center;
    background-color: rgba(0,0,0,0.5);
    color: #fff;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 10px;
}

#chat-window {
    flex: 1;
    border: 2px solid #fff;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 10px;
    overflow-y: auto;
    background: rgba(0,0,0,0.2);
}

.user {
    text-align: right;
    margin: 5px;
    color: #00ffea;
}

.bot {
    text-align: left;
    margin: 5px;
    color: #fffa00;
}

.input-container {
    display: flex;
    gap: 5px;
}

input[type="text"] {
    flex: 1;
    padding: 8px;
    border-radius: 5px;
    border: none;
}

button {
    padding: 8px 10px;
    border-radius: 5px;
    border: none;
    cursor: pointer;
}

footer {
    padding: 10px;
    display: flex;
    justify-content: space-between;
    background-color: rgba(0,0,0,0.5);
    color: #fff;
}

/* ----------------------------
   Backgrounds
---------------------------- */
.neon-bg {
    background: radial-gradient(circle, #0ff, #00f, #0f0);
}

.dark-bg {
    background: linear-gradient(#111, #333);
    color: #fff;
}

.light-bg {
    background: linear-gradient(#eee, #fff);
    color: #000;
}