body {
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
            font-family: system-ui, -apple-system, sans-serif;
            background: #f5f5f5;
        }

        h1 {
            text-align: center;
            color: #2d3748;
            margin-bottom: 2rem;
        }

        #container {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 2rem;
            border: 2px dashed #cbd5e0;
            border-radius: 1rem;
            background: white;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            transition: border-color 0.3s ease;
        }

        #container:hover {
            border-color: #4a5568;
        }

        #container svg {
            margin-bottom: 1rem;
            opacity: 0.7;
        }

        #container div {
            margin-top: 1.5rem;
            width: 100%;
            max-width: 400px;
        }

        input[type="text"] {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid #e2e8f0;
            border-radius: 0.5rem;
            font-size: 1rem;
            transition: border-color 0.3s ease;
            background: #f8fafc;
        }

        input[type="text"]:focus {
            outline: none;
            border-color: #4a5568;
            box-shadow: 0 0 0 3px rgba(74, 85, 104, 0.1);
        }

        #example {
            display: inline-block;
            margin-top: 0.5rem;
            color: #4299e1;
            cursor: pointer;
            font-size: 0.875rem;
            transition: color 0.3s ease;
        }

        #example:hover {
            color: #2b6cb0;
            text-decoration: underline;
        }

        #status {
            display: block;
            margin-top: 1.5rem;
            text-align: center;
            color: #4a5568;
            font-size: 0.875rem;
            padding: 0.5rem;
            border-radius: 0.5rem;
            background: #edf2f7;
        }

        #upload {
            display: none;
        }

        @media (max-width: 640px) {
            body {
                padding: 1rem;
            }
            
            #container {
                padding: 1.5rem;
            }
        }