:root {
            --background-dark: rgb(24, 26, 44);
            --background-darker: #0A0A0A;
            --primary-neon-blue: #00B4FF;
            --primary-neon-blue-light: #4DFFFF;
            --secondary-neon-blue: #004976;
            --text-primary: #E6E6E6;
            --text-secondary: #8892B0;
            --accent-color: #10B981;
            --error-color: #FF4D4D;
            --border-color: #1A2C4F;
            --shadow: 0 10px 15px -3px rgba(0, 180, 255, 0.1), 0 4px 6px -2px rgba(0, 180, 255, 0.05);
            --border-radius: 12px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: var(--background-dark);
            color: var(--text-primary);
            height: 100dvh;
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            background-color: var(--background-darker);
            box-shadow: var(--shadow);
            margin-left: 1rem;
            margin-right: 1rem;
            margin-top: 1rem;
        }

        .logo-image {
            height: 3rem;
            width: 3.5rem;
            margin-right: 0.75rem;
            vertical-align: middle;
        }

        .logo {
            display: flex;
            align-items: center;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary-neon-blue);
            text-shadow: 0 0 10px rgba(0, 180, 255, 0.5);
            gap: 0.75rem;
        }

        .logo span {
            vertical-align: middle;
        }

        .logo-tagline {
            height: 2.3rem;
            margin-right: 0.75rem;
            vertical-align: middle;
        }

        .main {
            flex: 1;
            display: flex;
            flex-direction: column;
            padding: 1rem;
            overflow: hidden;
        }

        .chat-container {
            flex: 1;
            display: flex;
            flex-direction: column;
            background-color: var(--background-darker);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            margin-bottom: 1rem;
            display: none;
        }

        .chat-messages {
            flex: 1;
            overflow-y: auto;
            padding: 2rem;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .message {
            display: flex;
            align-items: flex-start;
            max-width: 80%;
            animation: fadeIn 0.3s ease-in-out;
            gap: 0.75rem;
        }

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

        .message.user {
            align-self: flex-end;
            flex-direction: row-reverse;
        }

        .message.assistant {
            align-self: flex-start;
        }


        .message-content {
            padding: 1rem;
            border-radius: 18px;
            box-shadow: 0 1px 2px rgba(0, 180, 255, 0.1);
            line-height: 1.5;
            overflow-wrap: break-word;
            word-break: break-word;
        }

        .message.user .message-content {
            background-color: var(--secondary-neon-blue);
            color: white;
            border-top-right-radius: 4px;
        }

        .message.assistant .message-content {
            background-color: var(--border-color);
            color: var(--text-primary);
            border-top-left-radius: 4px;
        }

        .message.user:not(:has(.profile-image)) {
            flex-direction: row;
            justify-content: flex-end;
        }

        .message.user:not(:has(.profile-image)) .message-content {
            border-top-right-radius: 4px;
            border-top-left-radius: 18px;
        }

        .message.placeholder .message-content {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .typing-indicator {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .typing-indicator span {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: var(--primary-neon-blue-light);
            border-radius: 50%;
            animation: typingBounce 1.4s infinite ease-in-out;
        }

        .typing-indicator span:nth-child(1) { animation-delay: 0s; }
        .typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
        .typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

        @keyframes typingBounce {
            0%, 80%, 100% { transform: scale(0.6); }
            40% { transform: scale(1); }
        }

        .input-container {
            display: flex;
            align-items: center;
            padding: 1rem 2rem;
            box-shadow: var(--shadow);
            border-radius: var(--border-radius);
            background-color: var(--background-darker);
            border-top: 1px solid var(--border-color);
            gap: 20px;
            display: none;
        }

        .user-input {
            flex: 1;
            padding: 0.875rem 1.25rem;
            border: 1px solid var(--border-color);
            border-radius: 18px;
            font-size: 1rem;
            outline: none;
            background-color: black;
            color: var(--text-primary);
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .user-input:focus {
            border-color: var(--primary-neon-blue);
            box-shadow: 0 0 0 2px rgba(0, 180, 255, 0.3);
        }

        .send-button {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border: none;
            border-radius: 50%;
            background-color: transparent;
            color: var(--primary-neon-blue);
            cursor: pointer;
            transition: transform 0.2s, color 0.2s;
            -webkit-tap-highlight-color: transparent;
        }

        .send-button:hover {
            color: var(--primary-neon-blue-light);
            transform: scale(1.1);
        }

        .send-button i {
            font-size: 1.25rem;
        }

        .mic-button {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border: none;
            border-radius: 50%;
            background-color: transparent;
            color: var(--primary-neon-blue);
            cursor: pointer;
            transition: transform 0.2s, color 0.2s;
        }

        .mic-button:hover {
            color: var(--primary-neon-blue-light);
            transform: scale(1.1);
        }

        .mic-button i {
            font-size: 1.5rem;
        }

        .mic-button.active {
            color: var(--error-color);
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(255, 77, 77, 0.5); }
            70% { box-shadow: 0 0 0 10px rgba(255, 77, 77, 0); }
            100% { box-shadow: 0 0 0 0 rgba(255, 77, 77, 0); }
        }

        .message.error {
            color: var(--error-color);
        }

        .status-indicator {
            padding: 0.5rem 1rem;
            background-color: transparent;
            color: var(--primary-neon-blue);
            border-radius: 20px;
            font-size: 0.875rem;
            display: none;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            margin-bottom: 0.5rem;
            text-shadow: 0 0 5px rgba(0, 180, 255, 0.5);
        }

        .status-indicator.active {
            display: flex;
        }

        .welcome-message {
            text-align: center;
            margin: 2rem 0;
            font-size: 1.5rem;
            color: var(--text-secondary);
        }

        /* Scrollbar Styling */
        .chat-messages::-webkit-scrollbar {
            width: 4px;
        }

        .chat-messages::-webkit-scrollbar-track {
            background: var(--background-dark);
        }

        .chat-messages::-webkit-scrollbar-thumb {
            background: var(--primary-neon-blue);
            border-radius: 4px;
        }

        .chat-messages::-webkit-scrollbar::-webkit-scrollbar-thumb:hover {
            background: var(--primary-neon-blue-light);
        }
        .message .message-content a { /* Changed from .urChatMessage to .message */
            color: #00B4FF;
        }

        .message .message-content a:hover { /* Changed from .urChatMessage to .message */
            color: #0077BE;
        }

        .message.assistant .message-content {
            display: block;
            width: 100%;
        }

        .message.assistant .message-content p {
            display: block;
            margin-bottom: 10px;
            width: 100%;
        }

        .message.assistant .message-content em {
            color: grey;
        }

        .start-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(10px);
            z-index: 1000;
        }

        .start-button {
            padding: 20px 40px;
            font-size: 24px;
            color: var(--text-primary);
            background-color: transparent;
            border: 2px solid var(--primary-neon-blue);
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: background-color 0.3s, color 0.3s;
        }

        .start-button:hover {
            background-color: var(--primary-neon-blue);
            color: var(--background-darker);
        }

        @media (max-width: 768px) {
            .header {
                height: 4rem;
                padding: 1rem 1rem;
            }
            .logo-image {
                margin-right: 0;
            }
            .message {
                max-width: 90%;
                gap: 0.5rem;
            }
            .message.user {
                flex-direction: row;
                justify-content: flex-end;
            }
            .message.assistant {
                flex-direction: row;
            }
            .message-content {
                padding: 0.75rem 1rem;

            }
            .message.user .message-content {
                text-align: left;
            }
            .input-container {
                padding: 1rem 1rem;
            }
            .user-input {
                padding: 0.5rem 0.5rem;
            }
            .chat-messages {
                padding: 1rem;
            }
            .chat-messages::-webkit-scrollbar {
            width: 1px;
            }
        }