/* General Body Styling */
body {
    background-color: #F3F4F6;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #111827;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

/* Main Chat Container */
.chat-container {
    width: 100%;
    max-width: 768px;
    height: 90vh;
    max-height: 800px;
    background-color: #FFFFFF;
    border-radius: 0.75rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Chat Header */
.chat-header {
    padding: 1rem 1.5rem;
    background: linear-gradient(45deg, #4F46E5, #6366F1);
    color: white;
    border-bottom: 1px solid #E5E7EB;
    text-align: center;
    flex-shrink: 0;
}

.chat-header h1 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

/* Message List */
.message-list {
    flex-grow: 1;
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Individual Message Styling */
.message {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    max-width: 85%;
    animation: fadeIn 0.3s ease-out;
}

.message .avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #E5E7EB;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    flex-shrink: 0;
}

.message .message-content {
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    line-height: 1.5;
}

/* AI (Bot) Message */
.message.bot {
    align-self: flex-start;
}

.message.bot .avatar {
    background-color: #4F46E5;
    color: white;
}

.message.bot .message-content {
    background-color: #EEF2FF;
    color: #3730A3;
    border-top-left-radius: 0;
}

/* User Message */
.message.user {
    align-self: flex-end;
}

.message.user .message-content {
    background-color: #10B981;
    color: white;
    border-top-right-radius: 0;
}
.message.user .avatar {
    display: none; /* Hide avatar for user messages for a cleaner look */
}


/* Input Area */
.input-area {
    padding: 1rem 1.5rem;
    border-top: 1px solid #E5E7EB;
    background-color: #F9FAFB;
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

.input-area input {
    flex-grow: 1;
    padding: 0.75rem 1rem;
    border: 1px solid #D1D5DB;
    border-radius: 0.375rem;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-area input:focus {
    outline: none;
    border-color: #4F46E5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.input-area button {
    padding: 0.75rem 1.5rem;
    border: none;
    background-color: #4F46E5;
    color: white;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.input-area button:hover {
    background-color: #4338CA;
}

.input-area button:disabled {
    background-color: #A5B4FC;
    cursor: not-allowed;
}

#analyze-button {
    width: 100%;
    padding: 1rem;
    border: none;
    background-color: #10B981; /* Emerald Green */
    color: white;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

#analyze-button:hover {
    background-color: #059669;
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    padding: 5px 0;
}
.typing-indicator span {
    height: 8px;
    width: 8px;
    float: left;
    margin: 0 2px;
    background-color: #9E9E9E;
    display: block;
    border-radius: 50%;
    opacity: 0.4;
    animation: 1s blink infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: .2s; }
.typing-indicator span:nth-child(3) { animation-delay: .4s; }

@keyframes blink {
    50% { opacity: 1; }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}