/* Basic Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f6f8;
    color: #333;
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: #202123;
    color: #fff;
    padding: 15px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header .new-chat-btn {
    width: 100%;
    padding: 10px 15px;
    background-color: transparent;
    border: 1px solid #4a4a4a;
    border-radius: 5px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    margin-bottom: 15px;
}

.sidebar-header .new-chat-btn:hover {
    background-color: #333;
}

.conversation-list {
    flex-grow: 1;
    margin-bottom: 15px;
}

.conversation-item {
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 5px;
}

.conversation-item:hover {
    background-color: #333;
}

.sidebar-footer {
    border-top: 1px solid #4a4a4a;
    padding-top: 15px;
}

.sidebar-btn {
    width: 100%;
    padding: 10px 15px;
    background-color: transparent;
    border: none;
    border-radius: 5px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    text-align: left;
}

.sidebar-btn:hover {
    background-color: #333;
}

/* Chat Area */
.chat-area {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    margin: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.welcome-message {
    color: #999;
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
}

.chat-box {
    flex-grow: 1;
    width: 100%;
    max-width: 800px; /* Limit width for better readability */
    overflow-y: auto;
    padding-right: 15px; /* Space for scrollbar */
}

/* Message Styling */
.message {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.message.user {
    justify-content: flex-end;
}

.message.bot {
    justify-content: flex-start;
}

.message-bubble {
    max-width: 70%;
    padding: 12px 18px;
    border-radius: 15px;
    margin: 0 10px;
}

.message.user .message-bubble {
    background-color: #007bff;
    color: white;
    border-bottom-right-radius: 0;
}

.message.bot .message-bubble {
    background-color: #e5e5ea;
    color: #333;
    border-bottom-left-radius: 0;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: #ccc; /* Placeholder color */
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
}

.message.user .message-avatar {
    background-color: #007bff;
    color: white;
    order: 2; /* User avatar on the right */
}

.message.bot .message-avatar {
    background-color: #333; /* Gemini-like color */
    color: white;
    order: 1; /* Bot avatar on the left */
}

.message-content {
    line-height: 1.5;
}

/* Input Area */
.input-area {
    width: 100%;
    max-width: 800px;
    display: flex;
    align-items: center;
    padding: 10px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
}

.input-area textarea {
    flex-grow: 1;
    padding: 12px 15px;
    border: none;
    outline: none;
    resize: none; /* Disable textarea resizing */
    font-size: 16px;
    background-color: transparent;
    color: #333;
    border-radius: 5px;
    max-height: 200px; /* Limit textarea height */
}

.input-area textarea::placeholder {
    color: #999;
}

.send-button {
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 10px;
    transition: background-color 0.2s ease;
}

.send-button:hover {
    background-color: #0056b3;
}

.send-button .material-symbols-outlined {
    font-size: 24px;
}

/* Material Symbols Icons */
.material-symbols-outlined {
    font-size: 24px;
    vertical-align: middle;
}