/* --- Theme Toggle Button --- */
.theme-toggle-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: white;
    cursor: pointer;
    padding: 6px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, border-color 0.2s;
}

.theme-toggle-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.theme-toggle-btn .moon-icon {
    display: none;
}

/* --- Dark Mode Styles --- */
body.dark-mode .theme-toggle-btn .sun-icon {
    display: none;
}

body.dark-mode .theme-toggle-btn .moon-icon {
    display: block;
}

body.dark-mode {
    background-color: #121212;
    color: #e0e0e0;
}

/* Make main background darker in dark mode */
body.dark-mode {
    background-image: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../images/mainbackground.png');
}

/* Make chat message background darker in dark mode */
.dark-mode .chat-messages {
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../images/botbackground.png');
    background-color: #1e1e1e;
}

.dark-mode .chat-header {
    background-color: #1f1f1f;
    border-bottom: 1px solid #333;
}

.dark-mode .theme-toggle-btn {
    border-color: rgba(255, 255, 255, 0.3);
}

.dark-mode .bot-message p {
    background-color: #363636;
    color: #e0e0e0;
}

.dark-mode .user-message p {
    background-color: #3a00e5;
}

.dark-mode .chat-input-area {
    background-color: #1f1f1f;
    border-top: 1px solid #333;
}

.dark-mode #user-input {
    background-color: #363636;
    border-color: #444;
    color: #e0e0e0;
}

.dark-mode #user-input::placeholder {
    color: #888;
}

.dark-mode #user-input:focus {
    border-color: #3a00e5;
}

.dark-mode .input-action-btn {
    color: #aaa;
}

.dark-mode .input-action-btn:hover {
    background-color: #363636;
    color: #e0e0e0;
}