body {
            font-family: Arial, sans-serif;
            background: #f4f6f8;
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: 700px;
            margin: 40px auto;
            background: white;
            padding: 30px;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
        }

        h1 {
            text-align: center;
            margin-bottom: 10px;
        }

        .intro {
            text-align: center;
            margin-bottom: 30px;
            color: #555;
        }

        label {
            display: block;
            margin-top: 18px;
            margin-bottom: 6px;
            font-weight: bold;
        }

        input,
        select {
            width: 100%;
            box-sizing: border-box;
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 16px;
        }

        .checkbox-group {
            margin-top: 10px;
        }

        .checkbox-group label {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: normal;
            margin-top: 10px;
        }

        .checkbox-group input {
            width: auto;
        }

        button {
            width: 100%;
            margin-top: 30px;
            padding: 14px;
            font-size: 18px;
            font-weight: bold;
            border: none;
            border-radius: 10px;
            cursor: pointer;
            background: #1f3c88;
            color: white;
        }

        button:hover {
            opacity: 0.9;
        }