body {
            font-family: 'Arial', sans-serif;
            background: linear-gradient(135deg, #f5c518, #ff8c00);
            color: #333;
            margin: 0;
            padding: 20px;
            text-align: center;
        }

        .container {
            max-width: 900px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 15px;
            padding: 20px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
        }

        h1 {
            color: #ff8c00;
            font-size: 2.5em;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }

        .bitcoin-logo {
            width: 100px;
            animation: spin 10s linear infinite;
            margin-bottom: 20px;
        }

        @keyframes spin {
            100% {
                transform: rotate(360deg);
            }
        }

        .data-box {
            background: #fff;
            border: 2px solid #ff8c00;
            border-radius: 10px;
            padding: 15px;
            margin: 10px 0;
            font-size: 1.2em;
            transition: transform 0.3s ease;
        }

        .data-box:hover {
            transform: scale(1.05);
        }

        #analysis {
            font-weight: bold;
            font-size: 1.3em;
            margin: 20px 0;
        }

        .cheap {
            color: #28a745;
        }

        .expensive {
            color: #dc3545;
        }

        #lastUpdated {
            font-size: 0.9em;
            color: #666;
        }

        .content-section {
            margin-top: 40px;
            text-align: left;
        }

        .content-section h2 {
            color: #ff8c00;
            border-bottom: 2px solid #ff8c00;
            padding-bottom: 5px;
        }

        .faq-item {
            margin: 15px 0;
        }

        .faq-item h3 {
            color: #333;
            margin: 0;
        }

        .faq-item p {
            background: #f9f9f9;
            padding: 10px;
            border-radius: 5px;
            margin: 5px 0 0;
        }

        .important-note {
            background-color: #fde9d9;
            border: 1px solid #e9a768;
            border-radius: 5px;
            padding: 15px;
            margin-top: 30px;
            text-align: left;
        }

        .important-note h3 {
            color: #ff8c00;
            margin-top: 0;
        }

        #lastUpdated {
            font-size: 0.9em;
            color: #666;
        }

        .input-container {
            margin-top: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .input-container label {
            font-size: 0.8em;
            margin-bottom: 0;
            color: #555;
        }

        .input-container input[type="number"] {
            width: 60px;
            padding: 5px;
            font-size: 0.8em;
        }

        .input-container button {
            padding: 5px 10px;
            font-size: 0.7em;
        }