/* Reset box-sizing for everything */
*, *::before, *::after {
    box-sizing: border-box;
}

/* Base styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    min-height: 95vh;
    margin: 0;
    padding: 0;
    background-color: #f5f7fa;
    color: #333;
    box-sizing: border-box;
    overflow-x: hidden;
}

/* Container: centered app look */
.container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    max-width: 800px;
    margin: 10px auto;
    height: 95vh; /*calc(100vh - 80px);   Subtract top + bottom margin */
    display: flex;
    flex-direction: column;
}

/* When running inside Tableau (iframe), use all available space */
body.in-extension .container {
    max-width: 100vw !important;
    width: 100vw !important;
    margin: 0 !important;
    border-radius: 0;
    height: 100vh;
    min-height: 0;
}

/* Chat box should flex and scroll as needed */
.chat-box {
    flex: 1 1 auto;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px;
    background: #fafbfc;
    min-height: 0;
}

/* Header styles */
header {
    background: #2c3e50;
    color: white;
    padding: 30px;
    text-align: center;
}

header h1 {
    margin: 0 0 10px 0;
    font-size: 2em;
}

header p {
    margin: 0;
    opacity: 0.9;
}

/* Chat message styles */
.message {
    margin: 15px 0;
    padding: 12px 16px;
    border-radius: 8px;
    max-width: 80%;
    line-height: 1.4;
}

.message.user {
    background: #007bff;
    color: white;
    margin-left: auto;
    text-align: right;
}

.message.bot {
    background: #e9ecef;
    color: #495057;
}

/* Input area at the bottom */
.input-area {
    display: flex;
    gap: 10px;
    padding: 20px;
    background: white;
    border-top: 1px solid #dee2e6;
}

#messageInput {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #dee2e6;
    border-radius: 6px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.2s;
}

#messageInput:focus {
    border-color: #007bff;
}

#sendBtn {
    padding: 12px 24px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.2s;
}

#sendBtn:hover {
    background: #0056b3;
}

#sendBtn:disabled {
    background: #6c757d;
    cursor: not-allowed;
}

/* Responsive for smaller screens */
@media (max-width: 600px) {
    .container {
        max-width: 100vw;
        width: 100vw;
        margin: 0;
        border-radius: 0;
        height: 100vh;
    }
    body {
        padding: 0;
    }
    header {
        padding: 20px;
    }
    header h1 {
        font-size: 1.5em;
    }
    .chat-box {
        padding: 15px;
    }
    .input-area {
        padding: 15px;
        flex-direction: column;
    }
    #sendBtn {
        padding: 12px;
    }
}