@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

html, body, [class*="css"] {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Hide Streamlit elements if needed */
/*
#MainMenu { visibility: hidden; }
footer { visibility: hidden; }
header { visibility: hidden; }
*/

.main .block-container {
    padding-top: 1rem;
    padding-bottom: 2rem;
    max-width: 80%;
}

/* Logo styling */
.chatbot-logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #ccc;
    margin-right: 15px;
    vertical-align: middle;
}

/* Custom header */
.custom-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 60%);
    padding: 1rem;
    margin-bottom: 20px;
    border-radius: 16px;
    text-align: center;
    color: white;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.3);
}

.custom-header h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Response box styling (fallback for inline styles) */
.response-box {
    border: 1px solid #e8e8e8;
    border-radius: 12px;
    margin: 1rem 0;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
    font-family: 'Inter', sans-serif;
    background-color: #fafafa;
}

.response-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f5f7f8;
    padding: 0.8rem 1rem;
    font-size: 1rem;
    color: #333;
    font-weight: 500;
}

.response-content {
    background: #ffffff;
    padding: 1rem;
    max-height: 240px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
    scroll-behavior: smooth;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #2c2c2c;
    line-height: 1.6;
    border: none;
    border-radius: 0;
    margin-top: 0;
    font-weight: 400;
}

/* Scrollbar styling for response content */
.response-content::-webkit-scrollbar {
    width: 6px;
}

.response-content::-webkit-scrollbar-thumb {
    background-color: #d0d0d0;
    border-radius: 3px;
}

.response-content::-webkit-scrollbar-thumb:hover {
    background-color: #b8b8b8;
}

.response-content::-webkit-scrollbar-track {
    background-color: #f8f8f8;
    border-radius: 3px;
}

/* Firefox scrollbar */
.response-content {
    scrollbar-width: thin;
    scrollbar-color: #d0d0d0 #f8f8f8;
}

.copy-button {
    background: #e8e8e8;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    padding: 6px 12px;
    transition: background-color 0.2s ease;
    color: #555;
}

.copy-button:hover {
    background-color: #dcdcdc;
}

.copy-button:active {
    background-color: #d0d0d0;
}

/* Chat container */
.chat-container {
    position: relative;
    width: 100%;
    margin: 1rem 0;
}

/* Toast notification */
.custom-toast {
    visibility: hidden;
    min-width: 220px;
    margin-left: -110px;
    background-color: #4CAF50;
    color: #fff;
    text-align: center;
    border-radius: 8px;
    padding: 12px;
    position: fixed;
    z-index: 9999;
    left: 50%;
    bottom: 50px;
    font-size: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.custom-toast.show {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
}

/* Typing animation */
.typing-indicator {
    color: #666;
    font-size: 14px;
    font-style: italic;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Responsive design */
@media (max-width: 768px) {
    .main .block-container {
        max-width: 95%;
        padding-top: 0.5rem;
    }
    
    .custom-header h1 {
        font-size: 1.5rem;
        flex-direction: column;
        gap: 10px;
    }
    
    .chatbot-logo {
        width: 50px;
        height: 50px;
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .response-box {
        margin: 0.5rem 0;
    }
    
    .response-header {
        padding: 0.6rem;
        font-size: 0.9rem;
    }
    
    .response-content {
        padding: 0.8rem;
        max-height: 200px;
    }
    
    .copy-button {
        padding: 4px 8px;
        font-size: 0.9rem;
    }
}

/* Streamlit specific overrides */
.stChatMessage {
    padding: 1rem 0;
}

.stChat